Learning objects lo4
•Download as DOCX, PDF•
0 likes•182 views
- Sound waves are longitudinal waves that propagate in three dimensions through pressure variations caused by particle displacements. - The speed of sound can be calculated using the bulk modulus and density of the medium using the equation v=√B/ρ. - The mathematical description of the displacement amplitude of a sound wave is s(x,t)=smcos(kx-ωt+φ), where sm is the maximum displacement, k is the wave number, ω is the angular frequency, and φ is the phase constant. - The relationships between displacement, pressure, and intensity can be determined from the equations Δp(pressurechange)=Bk smsin(kx-ωt+φ) and I=1/2
Report
Share
Report
Share
Recommended
Physics learning object 8
- When two waves interact, they undergo constructive or destructive interference depending on whether they are in or out of phase. Constructive interference occurs when waves are in phase and destructive interference occurs when they are out of phase.
- When waves propagate spherically and are an integer number of wavelengths apart, they constructively interfere and can be described mathematically.
- The combination of two waves can be expressed as a function that depends on distance and time, with the difference between the path distances of the two waves.
- When two waves interact, there are cycles of constructive and destructive interference heard as varying sound amplitudes called beats. Beats can be expressed as a total wave function of position and time involving the mean angular frequency
Mit2 092 f09_lec05
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
Notes 10-3
This document contains homework problems from page 738 involving functions with different values of a and the corresponding ranges. It also defines the period of trigonometric functions like y=sin(bx) and y=cos(bx) as the length of one complete cycle, with the frequency b representing the number of cycles in a 2π span. It provides the formulas to calculate period given frequency and vice versa.
Triple integrals and applications
1. Triple integrals are used to find the volume of a solid region in 3D space. They are defined similarly to double integrals, encompassing the region with a network of boxes and taking the limit of Riemann sums.
2. Triple integrals can be evaluated using one of six orders of integration. The limits of integration are determined by first finding the innermost limits, which may depend on the outer variables, and then projecting the region onto different coordinate planes.
3. As an example, the center of mass of a unit cube is found by using a density function proportional to the square of the distance from the origin. Any order of integration can be used due to the symmetry of the region.
Change of order in integration
1. This document discusses changing the order of integration when evaluating double integrals over rectangles. To evaluate a double integral, we first integrate with respect to one variable while treating the other as a constant, and then integrate with respect to the remaining variable.
2. It provides definitions and properties of double integrals, including that a double integral over a rectangle exists if the integrand function is integrable over the region.
3. Examples are given to illustrate continuous and non-continuous integrand functions over different regions.
Mit2 092 f09_lec07
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
8.2.2 Torque
T = Fr is the formula for torque, where T is torque, F is force, and r is the effective radius. F = BIl, where B is flux density, I is current, and l is length. By substituting F = BIl into T = Fr, the combined formula for torque is T = BIlr. Another formula for torque is T=60P/2πn, where T is torque, P is power, and n is rotational speed in revolutions per minute. This formula and the previous formulas describe the relationships between torque, force, current, and other factors in motors and generators.
8.5 Bingo
The document contains multiple choice and short answer questions about modeling combined functions. Some key points covered include:
- Sound intensity is dependent on frequency and wavelength.
- Combined waveforms need to be regular and repeating to sound good together.
- A skier's height over time can be modeled by combining exponential and sinusoidal functions.
- Predator-prey relationships and interfering waves can be modeled with combined functions.
- Combining functions f(x)=(x^2) and g(x)=(x+6) results in the composite function y=f(g(x)).
- C# has a higher frequency than C.
- Modeling combined functions requires a minimum of 1 or 2 functions
Recommended
Physics learning object 8
- When two waves interact, they undergo constructive or destructive interference depending on whether they are in or out of phase. Constructive interference occurs when waves are in phase and destructive interference occurs when they are out of phase.
- When waves propagate spherically and are an integer number of wavelengths apart, they constructively interfere and can be described mathematically.
- The combination of two waves can be expressed as a function that depends on distance and time, with the difference between the path distances of the two waves.
- When two waves interact, there are cycles of constructive and destructive interference heard as varying sound amplitudes called beats. Beats can be expressed as a total wave function of position and time involving the mean angular frequency
Mit2 092 f09_lec05
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
Notes 10-3
This document contains homework problems from page 738 involving functions with different values of a and the corresponding ranges. It also defines the period of trigonometric functions like y=sin(bx) and y=cos(bx) as the length of one complete cycle, with the frequency b representing the number of cycles in a 2π span. It provides the formulas to calculate period given frequency and vice versa.
Triple integrals and applications
1. Triple integrals are used to find the volume of a solid region in 3D space. They are defined similarly to double integrals, encompassing the region with a network of boxes and taking the limit of Riemann sums.
2. Triple integrals can be evaluated using one of six orders of integration. The limits of integration are determined by first finding the innermost limits, which may depend on the outer variables, and then projecting the region onto different coordinate planes.
3. As an example, the center of mass of a unit cube is found by using a density function proportional to the square of the distance from the origin. Any order of integration can be used due to the symmetry of the region.
Change of order in integration
1. This document discusses changing the order of integration when evaluating double integrals over rectangles. To evaluate a double integral, we first integrate with respect to one variable while treating the other as a constant, and then integrate with respect to the remaining variable.
2. It provides definitions and properties of double integrals, including that a double integral over a rectangle exists if the integrand function is integrable over the region.
3. Examples are given to illustrate continuous and non-continuous integrand functions over different regions.
Mit2 092 f09_lec07
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
8.2.2 Torque
T = Fr is the formula for torque, where T is torque, F is force, and r is the effective radius. F = BIl, where B is flux density, I is current, and l is length. By substituting F = BIl into T = Fr, the combined formula for torque is T = BIlr. Another formula for torque is T=60P/2πn, where T is torque, P is power, and n is rotational speed in revolutions per minute. This formula and the previous formulas describe the relationships between torque, force, current, and other factors in motors and generators.
8.5 Bingo
The document contains multiple choice and short answer questions about modeling combined functions. Some key points covered include:
- Sound intensity is dependent on frequency and wavelength.
- Combined waveforms need to be regular and repeating to sound good together.
- A skier's height over time can be modeled by combining exponential and sinusoidal functions.
- Predator-prey relationships and interfering waves can be modeled with combined functions.
- Combining functions f(x)=(x^2) and g(x)=(x+6) results in the composite function y=f(g(x)).
- C# has a higher frequency than C.
- Modeling combined functions requires a minimum of 1 or 2 functions
8.5 Bingo
The document contains multiple choice and short answer questions about modeling combined functions. Some key points covered include:
- Sound intensity is dependent on frequency and wavelength.
- Notes sound good together if their combined waveform is regular and repeating.
- The height of a skier down a hill can be modeled by combining exponential and sinusoidal functions.
- A predator-prey relationship could be modeled with a combined function.
Comparing 3-D Interpolation Techniques
The document compares different 3D interpolation methods for digital images. It discusses nearest neighbor, tri-linear, cubic-keys, Catmull-Rom spline, clamped cubic spline, and B-spline interpolation methods. It also presents analysis of computation times and error rates for these different methods when interpolating and rotating a test 3D matrix.
Multi variable integral
This document discusses multivariable integrals and their applications. Multivariable integrals generalize single-variable integrals to functions with more than one variable, such as double integrals for two variables and triple integrals for three variables. These can be used to find the volume under a 3D surface. Examples are given of calculating mass and center of mass for 2D objects using double integrals of the density function over a region. Arc length of curves and work done by variable forces can also be determined using integrals.
Top school in gurgaon
This document provides an overview of the Laplace transform, which is useful for solving linear differential equations with constant coefficients. It defines the Laplace transform, provides examples of evaluating basic transforms, and establishes properties like linearity. Specifically:
- The Laplace transform of a function f(t) is defined as an improper integral involving the exponential function e^-st from 0 to infinity.
- Examples show how to evaluate the Laplace transforms of simple functions like 1, e^at, and sin(at).
- For a function f to have a Laplace transform, it must be piecewise continuous and have exponential order as t approaches infinity.
- The Laplace transform is a linear operation, so the transform of a sum
Algebra 6 Point 2
This document discusses how to simplify powers of monomials. It provides two rules:
1) To raise a power to a power, multiply the exponents and keep the same base. For example, (bm)n = bmn.
2) To find the power of a product, raise each factor to that power. For example, abm= ambm.
It also notes that expressions like (2x)3 and 2x3 are not the same - the first involves multiplying 2x by itself 3 times while the second involves raising 2 to the power of 3 and x to the power of 3 separately. Students are directed to practice problems on page 205.
PHYS 101 LO4
Two sound waves of 100 Hz travel in the x-direction, with amplitudes of 20nm and 40nm and a phase difference of π/3. Using trigonometric identities, the solution expresses the combined waves as 40cos(kx-ωt)-/+20√3sin(kx-ωt). Equating this to Acos(kx-ωt-θ) and solving the equations for A and θ yields the resultant amplitude as 52.915nm.
Utility maximisation and regret minimisation - a mixture of a generalisation
Utility maximisation and regret minimisation - a mixture of a generalisationInstitute for Transport Studies (ITS)
Poster presented at TRB 2015.
www.trb.org/AnnualMeeting2015/annualmeeting2015.aspx
www.its.leeds.ac.uk/people/s.hessSolution 3 a ph o 2
This document provides the solution to a theoretical question regarding the thermal vibration of surface atoms.
(1) It calculates the wavelength of an incident electron beam and considers the interference between atomic rows on a surface. Two possible solutions for the phase angle are obtained.
(2) An expression is derived for the total energy of vibration of surface atoms in the direction of the surface normal as a function of time and atomic mass.
(3) Combining the energy expression with data about the material properties allows calculating the frequency and amplitude of vibration of the surface atoms. The calculated frequency is found to match results from a graph in the question.
Gaussian Quadrature Formula
Gaussian Quadrature Formulas, which are simple and will help learners learn about Gauss's One, Two and Three Point Formulas, I have also included sums so that learning can be easy and the method can be understood.
Notes 4-7
This document discusses scale changes and periodic functions. It defines key concepts like amplitude, period, and frequency. It provides examples of how changing the scale (a) or frequency (b) affects the amplitude and period of trigonometric functions like sine, cosine, and tangent. The concluding examples give the period, amplitude, and frequency for specific trigonometric equations.
Efficient Computation of Regret-ratio Minimizing Set: A Compact Maxima Repres...
The document presents a method for efficiently computing a regret-ratio minimizing set (RRMS) from multi-dimensional data. For 2D data, it proposes a dynamic programming algorithm that runs in O(r*s*log(s)*log(c)) time, where r is the set size, s is the skyline size, and c is the convex hull size. For higher dimensions, it transforms the problem into a discretized min-max problem (DMM) and then solves a series of set cover problems to find an approximate RRMS in O(n*log(n)) time for fixed dimensions, where n is the number of data points. The method is evaluated on both synthetic and real-world datasets
Numerical integration;Gaussian integration one point, two point and three poi...
The document discusses numerical integration using Gaussian quadrature. It describes one-point, two-point, and three-point Gaussian quadrature rules. For each rule, it provides the formula used to approximate a definite integral of a function over an interval by calculating a weighted sum of the function values at specified points. Examples are included to demonstrate applying the one-point, two-point, and three-point rules to evaluate definite integrals.
Cambio Climatico CO2 y la Diferencial de una funcion
Modelo exponencial propuesto como la funcion que define la concentracion de CO2 mediante la aplicacion de la diferencial de una funcion. El cambio climático es un fenómeno que está asociado a la intervención humana por la producción y acumulación de gases de efecto invernadero en la atmosfera, como el CO2
Double Integral Powerpoint
Double integrals are used to calculate properties of planar laminas such as mass, center of mass, and moments of inertia by integrating a density function over a region. The inner integral is evaluated first, treating the other variable as a constant. Properties include:
1) Total mass by double integrating the density function over the region.
2) Center of mass coordinates by taking moments about axes and dividing by total mass.
3) Moments of inertia by double integrating the distance squared from an axis times the density.
Lar calc10 ch02_sec4
The document discusses the chain rule, which is used to find the derivative of a composite function. It states that if y changes dy/du times as fast as u, and u changes du/dx times as fast as x, then y changes (dy/du)(du/dx) times as fast as x. It provides examples of applying the chain rule to find derivatives of composite functions, including functions with multiple compositions. It also discusses using the general power rule as a special case of the chain rule and simplifying derived functions using algebra. Finally, it outlines the chain rule versions of derivatives for trigonometric functions.
Load distribution of soil mechanics
The vertical stresses in a soil mass due to a vertical line load can be obtained using Boussinesq's solution.
K050 ｔ分布f分布
The document discusses the t distribution and F distribution. It provides graphs of their probability density functions and examples of simulating random values from each distribution. It also shows how to calculate a t-statistic and F-ratio from sample data and compares the results to the theoretical distributions.
Day 3 examples a u1f13
This document discusses stretching and compressing functions. It provides examples of compressing functions vertically by a factor of 1/3 and horizontally by factors of 1/4 and -2. The examples show how compressing affects the graph of a function.
Climate Extremes Workshop - Semiparametric Estimation of Heavy Tailed Density...
Climate Extremes Workshop - Semiparametric Estimation of Heavy Tailed Density...The Statistical and Applied Mathematical Sciences Institute
This document discusses methods for semiparametric estimation of heavy-tailed densities while including covariate information. It introduces a transformation that separates a density's tail from its bulk using a tail-identified base family. This allows modeling the bulk parametrically while leaving the tail nonparametric. It extends linear quantile regression to multiple covariates by jointly modeling quantile planes over arbitrary predictor spaces. Applications to hurricane intensity and species abundance data are presented.SouthAfricaReport_PROOF11
The document provides details of a comparative study visit to South Africa organized by the Democratic Progress Institute from April 30th to May 7th, 2013. The visit focused on post-apartheid reconciliation and coexistence in South Africa. On the first day, the delegation visited Robben Island and heard from a former political prisoner about Nelson Mandela's imprisonment there during apartheid. They were welcomed to dinner in Cape Town by representatives involved in facilitating the visit, including a former opponent of apartheid and ANC negotiator. The speaker hoped the delegation would gain insights from South Africa's experience that could benefit peace processes in other countries.
Bab i & ii
[Ringkasan]
Teks tersebut merupakan studi kasus mengenai penerapan konsep Enterprise Resource Planning (ERP) pada aplikasi BE One Enterprise (BOE/B-1) di PT Bentoel Prima. Teks ini membahas latar belakang pemilihan sistem BOE 1 oleh PT Bentoel International, dampak penerapan ERP pada sistem tersebut, serta tujuan dilakukannya penelitian ini.
More Related Content
What's hot
8.5 Bingo
The document contains multiple choice and short answer questions about modeling combined functions. Some key points covered include:
- Sound intensity is dependent on frequency and wavelength.
- Notes sound good together if their combined waveform is regular and repeating.
- The height of a skier down a hill can be modeled by combining exponential and sinusoidal functions.
- A predator-prey relationship could be modeled with a combined function.
Comparing 3-D Interpolation Techniques
The document compares different 3D interpolation methods for digital images. It discusses nearest neighbor, tri-linear, cubic-keys, Catmull-Rom spline, clamped cubic spline, and B-spline interpolation methods. It also presents analysis of computation times and error rates for these different methods when interpolating and rotating a test 3D matrix.
Multi variable integral
This document discusses multivariable integrals and their applications. Multivariable integrals generalize single-variable integrals to functions with more than one variable, such as double integrals for two variables and triple integrals for three variables. These can be used to find the volume under a 3D surface. Examples are given of calculating mass and center of mass for 2D objects using double integrals of the density function over a region. Arc length of curves and work done by variable forces can also be determined using integrals.
Top school in gurgaon
This document provides an overview of the Laplace transform, which is useful for solving linear differential equations with constant coefficients. It defines the Laplace transform, provides examples of evaluating basic transforms, and establishes properties like linearity. Specifically:
- The Laplace transform of a function f(t) is defined as an improper integral involving the exponential function e^-st from 0 to infinity.
- Examples show how to evaluate the Laplace transforms of simple functions like 1, e^at, and sin(at).
- For a function f to have a Laplace transform, it must be piecewise continuous and have exponential order as t approaches infinity.
- The Laplace transform is a linear operation, so the transform of a sum
Algebra 6 Point 2
This document discusses how to simplify powers of monomials. It provides two rules:
1) To raise a power to a power, multiply the exponents and keep the same base. For example, (bm)n = bmn.
2) To find the power of a product, raise each factor to that power. For example, abm= ambm.
It also notes that expressions like (2x)3 and 2x3 are not the same - the first involves multiplying 2x by itself 3 times while the second involves raising 2 to the power of 3 and x to the power of 3 separately. Students are directed to practice problems on page 205.
PHYS 101 LO4
Two sound waves of 100 Hz travel in the x-direction, with amplitudes of 20nm and 40nm and a phase difference of π/3. Using trigonometric identities, the solution expresses the combined waves as 40cos(kx-ωt)-/+20√3sin(kx-ωt). Equating this to Acos(kx-ωt-θ) and solving the equations for A and θ yields the resultant amplitude as 52.915nm.
Utility maximisation and regret minimisation - a mixture of a generalisation
Utility maximisation and regret minimisation - a mixture of a generalisationInstitute for Transport Studies (ITS)
Poster presented at TRB 2015.
www.trb.org/AnnualMeeting2015/annualmeeting2015.aspx
www.its.leeds.ac.uk/people/s.hessSolution 3 a ph o 2
This document provides the solution to a theoretical question regarding the thermal vibration of surface atoms.
(1) It calculates the wavelength of an incident electron beam and considers the interference between atomic rows on a surface. Two possible solutions for the phase angle are obtained.
(2) An expression is derived for the total energy of vibration of surface atoms in the direction of the surface normal as a function of time and atomic mass.
(3) Combining the energy expression with data about the material properties allows calculating the frequency and amplitude of vibration of the surface atoms. The calculated frequency is found to match results from a graph in the question.
Gaussian Quadrature Formula
Gaussian Quadrature Formulas, which are simple and will help learners learn about Gauss's One, Two and Three Point Formulas, I have also included sums so that learning can be easy and the method can be understood.
Notes 4-7
This document discusses scale changes and periodic functions. It defines key concepts like amplitude, period, and frequency. It provides examples of how changing the scale (a) or frequency (b) affects the amplitude and period of trigonometric functions like sine, cosine, and tangent. The concluding examples give the period, amplitude, and frequency for specific trigonometric equations.
Efficient Computation of Regret-ratio Minimizing Set: A Compact Maxima Repres...
The document presents a method for efficiently computing a regret-ratio minimizing set (RRMS) from multi-dimensional data. For 2D data, it proposes a dynamic programming algorithm that runs in O(r*s*log(s)*log(c)) time, where r is the set size, s is the skyline size, and c is the convex hull size. For higher dimensions, it transforms the problem into a discretized min-max problem (DMM) and then solves a series of set cover problems to find an approximate RRMS in O(n*log(n)) time for fixed dimensions, where n is the number of data points. The method is evaluated on both synthetic and real-world datasets
Numerical integration;Gaussian integration one point, two point and three poi...
The document discusses numerical integration using Gaussian quadrature. It describes one-point, two-point, and three-point Gaussian quadrature rules. For each rule, it provides the formula used to approximate a definite integral of a function over an interval by calculating a weighted sum of the function values at specified points. Examples are included to demonstrate applying the one-point, two-point, and three-point rules to evaluate definite integrals.
Cambio Climatico CO2 y la Diferencial de una funcion
Modelo exponencial propuesto como la funcion que define la concentracion de CO2 mediante la aplicacion de la diferencial de una funcion. El cambio climático es un fenómeno que está asociado a la intervención humana por la producción y acumulación de gases de efecto invernadero en la atmosfera, como el CO2
Double Integral Powerpoint
Double integrals are used to calculate properties of planar laminas such as mass, center of mass, and moments of inertia by integrating a density function over a region. The inner integral is evaluated first, treating the other variable as a constant. Properties include:
1) Total mass by double integrating the density function over the region.
2) Center of mass coordinates by taking moments about axes and dividing by total mass.
3) Moments of inertia by double integrating the distance squared from an axis times the density.
Lar calc10 ch02_sec4
The document discusses the chain rule, which is used to find the derivative of a composite function. It states that if y changes dy/du times as fast as u, and u changes du/dx times as fast as x, then y changes (dy/du)(du/dx) times as fast as x. It provides examples of applying the chain rule to find derivatives of composite functions, including functions with multiple compositions. It also discusses using the general power rule as a special case of the chain rule and simplifying derived functions using algebra. Finally, it outlines the chain rule versions of derivatives for trigonometric functions.
Load distribution of soil mechanics
The vertical stresses in a soil mass due to a vertical line load can be obtained using Boussinesq's solution.
K050 ｔ分布f分布
The document discusses the t distribution and F distribution. It provides graphs of their probability density functions and examples of simulating random values from each distribution. It also shows how to calculate a t-statistic and F-ratio from sample data and compares the results to the theoretical distributions.
Day 3 examples a u1f13
This document discusses stretching and compressing functions. It provides examples of compressing functions vertically by a factor of 1/3 and horizontally by factors of 1/4 and -2. The examples show how compressing affects the graph of a function.
Climate Extremes Workshop - Semiparametric Estimation of Heavy Tailed Density...
Climate Extremes Workshop - Semiparametric Estimation of Heavy Tailed Density...The Statistical and Applied Mathematical Sciences Institute
This document discusses methods for semiparametric estimation of heavy-tailed densities while including covariate information. It introduces a transformation that separates a density's tail from its bulk using a tail-identified base family. This allows modeling the bulk parametrically while leaving the tail nonparametric. It extends linear quantile regression to multiple covariates by jointly modeling quantile planes over arbitrary predictor spaces. Applications to hurricane intensity and species abundance data are presented.What's hot (19)
Utility maximisation and regret minimisation - a mixture of a generalisation
Utility maximisation and regret minimisation - a mixture of a generalisation
Efficient Computation of Regret-ratio Minimizing Set: A Compact Maxima Repres...
Efficient Computation of Regret-ratio Minimizing Set: A Compact Maxima Repres...
Numerical integration;Gaussian integration one point, two point and three poi...
Numerical integration;Gaussian integration one point, two point and three poi...
Cambio Climatico CO2 y la Diferencial de una funcion
Cambio Climatico CO2 y la Diferencial de una funcion
Climate Extremes Workshop - Semiparametric Estimation of Heavy Tailed Density...
Climate Extremes Workshop - Semiparametric Estimation of Heavy Tailed Density...
Viewers also liked
SouthAfricaReport_PROOF11
The document provides details of a comparative study visit to South Africa organized by the Democratic Progress Institute from April 30th to May 7th, 2013. The visit focused on post-apartheid reconciliation and coexistence in South Africa. On the first day, the delegation visited Robben Island and heard from a former political prisoner about Nelson Mandela's imprisonment there during apartheid. They were welcomed to dinner in Cape Town by representatives involved in facilitating the visit, including a former opponent of apartheid and ANC negotiator. The speaker hoped the delegation would gain insights from South Africa's experience that could benefit peace processes in other countries.
Bab i & ii
[Ringkasan]
Teks tersebut merupakan studi kasus mengenai penerapan konsep Enterprise Resource Planning (ERP) pada aplikasi BE One Enterprise (BOE/B-1) di PT Bentoel Prima. Teks ini membahas latar belakang pemilihan sistem BOE 1 oleh PT Bentoel International, dampak penerapan ERP pada sistem tersebut, serta tujuan dilakukannya penelitian ini.
Touch Screens | The very expensive mistake
That seems like an odd thing to say for the leader in interactive hardware, but too often we find companies whose interactive deployments are nothing more than an expensive mistake.
Learn from the experts what makes or breaks a successful interactive touch screen experience.
Subject presiontation of dynamics of motion
This document discusses balancing of rotating machinery. It defines balancing as reducing unbalanced forces in rotating parts to an acceptable level by modifying machinery design. Unbalanced forces are caused by inertia of moving masses and produce disturbing forces and vibrations. Balancing is necessary for high-speed machines to prevent increased loads, stresses, and dangerous vibrations. Methods discussed include balancing a single mass with a single or two masses in the same or different planes, and balancing multiple masses in the same or different planes by transferring their forces to a reference plane.
Omkar (9764126682)
This presentation discusses concrete cloth, its uses, properties, and application in civil engineering. Concrete cloth is a flexible cement-impregnated fabric that hardens when hydrated to form a thin, durable layer. It has various advantages such as being rapid to install, flexible, strong, fireproof, waterproof and durable. Common applications of concrete cloth include bund lining, slope protection, pipeline protection, ground resurfacing, and mining applications. The presentation provides details on concrete cloth types, material properties like strength and abrasion resistance, methods of hydration and fixing, and concludes that it is a time-saving technique that is easy to place and handle.
concrete cloth
Concrete cloth is a cement-impregnated fabric that hardens when hydrated to form a thin, durable concrete layer. It has several advantages over conventional concrete such as being flexible, strong, fireproof, waterproof and durable while also being rapid, easy to use and environmentally friendly to install. The document outlines the material properties, methods of hydration and fixing, applications, advantages and limitations of concrete cloth for uses in civil engineering such as bund lining, slope protection, pipeline protection and ditch lining.
Viewers also liked (7)
Similar to Learning objects lo4
Harmonic Waves
A harmonic wave is a wave that undergoes simple harmonic motion as it travels. It can be described by the equation D(x,t)=Asin(kx-wt+φ), where D is displacement, A is amplitude, k is wave number, w is angular frequency, x is position, t is time, and φ is phase. The document provides examples of how to use this equation to calculate properties like wavelength, frequency, and acceleration of a harmonic wave traveling through different media. It also includes sample problems solving for these wave properties given values for variables like velocity, frequency, amplitude, and position over time.
Physics LO 4
This document summarizes key concepts about sound waves, including:
1) Sound waves are longitudinal waves that cause alternating high and low pressure areas as molecules are displaced in the propagation direction.
2) The speed of sound depends on the medium and can be calculated using the bulk modulus and density.
3) Sound waves can be described by displacement, pressure, wavelength, frequency, and other variables, with displacement and pressure 90 degrees out of phase.
Lo3 position and time plots
This document discusses position plots and time plots for waves. A position plot shows displacement as a function of position at a fixed time, allowing you to determine amplitude and wavelength. A time plot shows displacement over time at a fixed position, letting you find amplitude and frequency. The document provides examples of these plots and shows how to extract properties like wavelength, frequency, and period from the graphs. It also gives a comprehensive example of determining multiple wave properties from a time plot.
Chapter 3 wave_optics
The document discusses wave optics and electromagnetic waves. It defines key concepts like wavefronts, which connect points of equal phase, and rays, which describe the direction of wave propagation perpendicular to wavefronts. It explains Huygens' principle, which states that each point on a wavefront acts as a secondary source of spherical wavelets to determine the new wavefront position. The principle of superposition states that multiple waves add linearly at each point in space to determine the resulting disturbance. Interference occurs when waves are out of phase and their amplitudes diminish or vanish.
Lecture 07 sound waves. speed of sound. intensity.
1) Sound waves propagate as periodic longitudinal oscillations of particles in a medium, causing oscillations in pressure and density around the equilibrium values.
2) The speed of sound in a medium depends on its bulk modulus and density, following the equation v = √(B/ρ).
3) Sound intensity decreases with the square of the distance from the source, following the inverse square law. It can be calculated from the sound pressure or particle displacement using equations provided.
Standing waves
1. A standing wave is formed by two waves of equal amplitude, wavelength, and frequency travelling in opposite directions in the same medium.
2. Nodes occur at positions where the amplitude is zero, while antinodes occur at positions of maximum amplitude. The distance between nodes is half the wavelength, and between a node and adjacent antinode is a quarter wavelength.
3. For a string fixed at both ends, standing waves can form with wavelengths of 2L/m, where L is the string length and m is a positive integer. The lowest frequency is called the fundamental frequency. Higher integer multiples of this frequency are the harmonics.
Lecture 32 energy and momentum. standing waves.
This document provides information about energy and momentum in electromagnetic waves and standing waves. It discusses how energy is carried in EM waves and is split equally between the electric and magnetic fields. It also describes how EM waves transport energy through space via the Poynting vector and introduces the concept of radiation pressure from absorbed or reflected EM waves. The document then summarizes how standing electromagnetic waves can form between conducting plates and discusses the Doppler effect for electromagnetic waves.
Standing Waves
Standing waves occur when two waves of equal amplitude, frequency, and wavelength travel in opposite directions and combine. When this happens, the result is a wave that oscillates in simple harmonic motion where the string moves only up and down. Nodes occur where the amplitude is zero and anti-nodes where it is maximum. Standing waves can form on a string with fixed ends, with wavelengths that are integer divisions of the string length and resonant frequencies dependent on tension and mass density. This principle applies to stringed musical instruments where the string forms standing waves at harmonic frequencies.
Lecture 06 wave energy. interference. standing waves.
The document discusses wave energy and interference. It defines standing waves as occurring when a traveling wave is reflected by a fixed boundary, resulting in the superposition of the original wave and reflected wave. Standing waves have nodes where the displacement is always zero, and antinodes where the displacement is at a maximum. The normal modes of a system are its allowed standing wave patterns, which are determined by the boundary conditions. For a string fixed at both ends, the normal modes are half-wavelengths that are integer multiples of the string length.
Oscillations 2008 prelim_solutions
1. The document provides solutions to oscillation problems involving simple harmonic motion (SHM).
2. It examines the oscillations of objects submerged in liquids and determines forces, pressure, and displacement using concepts of SHM.
3. Damped oscillations and forced oscillations driven by external periodic forces like water waves are also analyzed in the solutions.
Electromagnetic fields
The document discusses electromagnetic waves and plane waves. It introduces Maxwell's equations, which describe electromagnetic waves that propagate through space at the speed of light. The document shows that the electric and magnetic fields of a plane wave oscillate perpendicular to the direction of propagation, and that the electric and magnetic fields are perpendicular to each other as well. It also defines the Poynting vector, which represents the direction and magnitude of the flow of electromagnetic energy.
hone_durham
0 0 0 0 0 0 1 -1
0 0 0 0 0 1 0 0
0 0 0 0 1 0 0 0
0 0 0 1 0 0 0 0
0 0 1 0 0 0 0 0
0 1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
-1 0 0 0 0 0 0 0
The
Harmonic waves
1) The document defines harmonic waves as waves that travel in simple harmonic motion. It describes properties such as amplitude, wavelength, frequency, period, and wave speed.
2) Equations are provided that describe the displacement of a medium over time for waves traveling in increasing or decreasing x directions.
3) The velocity and acceleration of segments of a medium are defined in terms of the displacement equation and its derivatives.
Damped Oscillations
A powerpoint for explaining damped oscillations and the equations associated with it. Includes a sample question in the powerpoint. For physics 101 learning object 2.
Lo1
This document discusses the derivation of the formula for wave speed on a string. It begins by isolating a small segment of string at the peak of a pulse. The formula for wave speed is then given as v=√(Ts/μ), where Ts is the tension force on the segment and μ is the linear mass density of the string. The document then defines linear mass density as the mass per unit length and tension force as the restoring force pulling the string segment inward. Through applying Newton's second law to the segment, the formula is derived. Examples are then given to show how wave speed is affected by changes in tension or mass density.
Lo 2
This document defines and explains standing waves. A standing wave results from two identical waves traveling in opposite directions with the same frequency. When the frequency is resonant, the waves will superimpose to form a stationary pattern with antinodes of maximum displacement and nodes of zero displacement. The position of nodes and antinodes can be determined using the standing wave equation. For a guitar string example, the document calculates the amplitude and wavelength of the traveling wave, finds the positions of the first two nodes, and determines the first harmonic frequency.
Harmonic wave physics
The document defines key terms related to harmonic waves such as amplitude, wavelength, wavenumber, and wave speed. It explains that wavelength is the shortest distance a wave repeats itself and relates wavenumber to wavelength using the equation k=2π/λ. The document also presents the wave speed equation V=λf and uses graphs of two radio waves with different periods to calculate their frequencies, wavelengths, and velocities. It determines that radio wave 2 has a higher velocity than radio wave 1.
Ch16 ssm
1. The document provides conceptual problems and solutions related to superposition and standing waves. It discusses topics like wave pulses traveling in opposite directions, fundamental frequencies of open and closed organ pipes, and using resonance frequencies to estimate air temperature.
2. It also covers problems involving interference of two waves with different phases and frequencies, and deriving an expression for the envelope of a superposed wave.
3. For one problem, it plots the total displacement of a superposed wave at t=0, and the envelope function at t=0, 5, and 10 seconds. From these plots, it estimates the speed of the envelope and compares it to the theoretical value obtained from the problem parameters.
Physics Learning Object 6
A standing wave is formed by two traveling waves moving in opposite directions with the same amplitude, wavelength, and frequency. The superposition of these waves results in locations of maximum and minimum displacement known as anti-nodes and nodes. The equation for a standing wave is the sum of the equations for the two traveling waves. This creates a stationary wave pattern with anti-nodes at locations of maximum displacement and nodes at locations of no displacement.
Wave equation.pptx .
The document discusses the numerical solution of the one-dimensional wave equation using the finite difference method. It presents the finite difference scheme, which approximates the second derivatives in the wave equation using central differences. The scheme is an explicit second-order accurate method that updates the solution at each time step using the values at the previous two time steps. An example problem is presented to illustrate applying the method with specified initial and boundary conditions.
Similar to Learning objects lo4 (20)
Lecture 07 sound waves. speed of sound. intensity.
Lecture 07 sound waves. speed of sound. intensity.
Lecture 06 wave energy. interference. standing waves.
Lecture 06 wave energy. interference. standing waves.
Recently uploaded
Direct Seeded Rice - Climate Smart Agriculture
Direct Seeded Rice - Climate Smart AgricultureInternational Food Policy Research Institute- South Asia Office
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
11.1 Role of physical biological in deterioration of grains.pdf
Storagedeteriorationisanyformoflossinquantityandqualityofbio-materials.
Themajorcausesofdeteriorationinstorage
•Physical
•Biological
•Mechanical
•Chemical
Storageonlypreservesquality.Itneverimprovesquality.
Itisadvisabletostartstoragewithqualityfoodproduct.Productwithinitialpoorqualityquicklydepreciates
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
Farming systems analysis: what have we learnt?.pptx
Presentation given at the official farewell of Prof Ken Gillet at Wageningen on 13 June 2024
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...Advanced-Concepts-Team
Presentation in the Science Coffee of the Advanced Concepts Team of the European Space Agency on the 07.06.2024.
Speaker: Diego Blas (IFAE/ICREA)
Title: Gravitational wave detection with orbital motion of Moon and artificial
Abstract:
In this talk I will describe some recent ideas to find gravitational waves from supermassive black holes or of primordial origin by studying their secular effect on the orbital motion of the Moon or satellites that are laser ranged.The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...Scintica Instrumentation
Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Recently uploaded (20)
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
11.1 Role of physical biological in deterioration of grains.pdf
11.1 Role of physical biological in deterioration of grains.pdf
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
Juaristi, Jon. - El canon espanol. El legado de la cultura española a la civi...
Juaristi, Jon. - El canon espanol. El legado de la cultura española a la civi...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
Farming systems analysis: what have we learnt?.pptx
Farming systems analysis: what have we learnt?.pptx
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
aziz sancar nobel prize winner: from mardin to nobel
aziz sancar nobel prize winner: from mardin to nobel
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Immersive Learning That Works: Research Grounding and Paths Forward
Immersive Learning That Works: Research Grounding and Paths Forward
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
Basics of crystallography, crystal systems, classes and different forms
Basics of crystallography, crystal systems, classes and different forms
Learning objects lo4
- 1. Sound Waves -Sound waves are longitudinal waves Sound waves propagate in three dimensions Pressure variation when particle make displacements. -The speed of sound Bulk modulus: B=-the ratio of change in pressure/the fractional change in the volume v=√B/ρ -Mathematical Description of the Displacement Amlitude s(x,t)=smcos(kx-ωt+φ) smis the maximum displacement k is the wave number k=2π/λ -Relationships between displacement, pressure and intensity Δp(pressurechange)=Bk smsin(kx-ωt+φ) Intensity=Power/Area I=P/A I=1/2ρvω^2sm^2
- 2. 2 0 1 2 3 4 x(m) Question：Please write the wave function for this wave showed in the picture if the T for the wave is 1s. s(x,t)=__________________________________ (Answer in the next page)
- 3. Answer: General wave function: s(x,t)=smcos(kx-ωt+φ) We can find that the maximum displacement (sm) is 2 K=2π/λ=2π/2 ω=2πf=2π/T=2π/1 φ=-π/2 s(x,t)=2cos(πx-2πt-π/2)