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A diver in a 100 kg diving suit attached to a 10 m umbilical cord spots a shark and shakes the cord to alert her crew. Assuming the cord weighs 1 kg and the average density of the diver and suit is 7000 kg/m3, the velocity of the wave in the cord can be calculated as 121.3 m/s. Using this velocity and the length of the cord, it will take approximately 0.082 seconds for the motion in the cord to reach the crew above.

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MILLIKANS OIL EXPERIMENT

MILLIKANS OIL EXPERIMENT

Chapter15 a

Chapter15 a

The Effect of Bottom Sediment Transport on Wave Set-Up

The Effect of Bottom Sediment Transport on Wave Set-Up

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MILLIKANS OIL EXPERIMENT

This document summarizes Millikan's oil drop experiment to determine the charge of an electron. It describes how Millikan improved on previous experiments by using non-volatile oil drops. The experiment measures the falling and rising times of oil drops in an electric field to calculate their charge. It finds the charges are integer multiples of the elementary charge, providing evidence for the quantization of electric charge and determining the charge of an electron to be 1.6x10-19 Coulombs. The document notes some measurements gave non-integer ratios possibly due to experimental errors in measurement.

Chapter15 a

The document discusses concepts related to fluids at rest, including:
- Hot air balloons use heated air which is less dense than surrounding air to create an upward buoyant force according to Archimedes' Principle.
- Fluid pressure is directly proportional to depth and density of the fluid, and is independent of container shape or area.
- Buoyant force on an object equals the weight of fluid displaced by the object.

The Effect of Bottom Sediment Transport on Wave Set-Up

In this paper we augment the wave-averaged mean field equations commonly used to describe wave set-up and wave-induced mean currents in the near-shore zone, with an empirical sediment flux law depending only on the wave-induced mean current and mean total depth. This model allows the bottom to evolve slowly in time, and is used to examine how sediment transport affects wave set-up in the surf zone. We show that the mean bottom depth in the surf zone evolves according to a simple wave equation, whose solution predicts that the mean bottom depth decreases and the beach is replenished. Further, we show that if the sediment flux law also allows for a diffusive dependence on the beach slope then the simple wave equation is replaced by a nonlinear diffusion equation which allows a steady-state solution, the equilibrium beach profile

Millikantalk

Millikan's oil drop experiment from 1909 helped determine the charge of an electron. The experiment measured how electric fields affected the terminal velocity of falling oil drops to deduce their charge. Precise measurements of field strengths, drop sizes, and fall times allowed Millikan to calculate individual drop charges. His results supported existing theories and provided a more accurate value for the electron charge, though the number has been refined since.

Engineering Physics (18 PHY112/22) notes

This document provides an overview of key concepts in engineering physics related to oscillations and waves. It defines terms like displacement, amplitude, frequency, period, equilibrium position, and angular frequency. It describes simple harmonic motion and derives the differential equation of motion. It also covers topics like restoring force, force constant, free and forced vibrations, damping, and quality factor. The document is intended as course material for an engineering physics module taught by Dr. Dileep C.S. in the department of physics.

shock wave

This document discusses shock waves. It defines shock waves as thin regions where supersonic flow is rapidly decelerated to subsonic flow through an adiabatic but non-isentropic process. There are three types of shock waves discussed: normal shock waves, which are perpendicular to flow; oblique shock waves, which are at an angle to flow; and curved shock waves. Examples of normal shock wave formation and oblique shock wave applications in aircraft are provided. Over-expanded and under-expanded flows through converging-diverging ducts are also summarized.

MILLIKANS OIL EXPERIMENT

MILLIKANS OIL EXPERIMENT

Chapter15 a

Chapter15 a

The Effect of Bottom Sediment Transport on Wave Set-Up

The Effect of Bottom Sediment Transport on Wave Set-Up

Millikantalk

Millikantalk

Engineering Physics (18 PHY112/22) notes

Engineering Physics (18 PHY112/22) notes

shock wave

shock wave

Phys 101 learning object 1

PHYS 101 Learning Object

Lo weidi sun

A cubic block submerged in water is being held partially underwater by hand. When the hand releases it, the block starts floating up. The document provides the solution to calculating the velocity of the block when it is half submerged, using equations for buoyant force, total force, and simple harmonic motion. The calculated velocity is 1 m/s.

Maria's learning object

Sound waves in warm and cold air

Lo2: Damped Oscillations

1. Goose wants to know the mass of his pencil box without a scale by using a rubber band, ruler, timer and laptop. He attaches the rubber band to a tree and pencil box, stretching it from 1-6 cm. After releasing it when stretched to 14 cm, it oscillates down to 11 cm over 3 oscillations.
2. The solution models the system as a damped oscillator. The equation relates amplitude to mass and drag constant. Using the measured 5 oscillations over 2.24 seconds, the natural frequency is calculated to be 14 radians/second.
3. The mass is then solved for using the damped oscillator equation, relating initial and measured amplitudes after 3 oscillations. The calculated mass

Learning object waves

The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms for those who already suffer from conditions like anxiety and depression.

Sound levels

This learning object briefly explains power intensity and its measurement. It also describes and emphasizes the importance of protecting yourself from high sound levels.

Lo2

1) Mountain waves are standing waves that form on the lee side of mountains due to changes in temperature and pressure causing vertical displacement. They can cause turbulence for aircraft.
2) To help a friend with acrophobia, the author decides to take a small plane ride but learns of the dangers of mountain waves first.
3) The document then discusses properties of standing waves like their position-dependent amplitude and using mountain waves to form clouds at anti-nodes.

Physics LO 1

This document discusses the spring mechanism of a tranquilizer gun. It provides the force constant and distance compressed of the gun's spring. It then shows calculations to determine:
1) The amount of potential energy stored in the spring, which is 0.225 Joules.
2) The velocity at which a 1.50g projectile would be ejected from the gun, which is 17.3 meters/second. The calculations neglect friction and the mass of the spring, and equate the initial potential energy to the final kinetic energy of the projectile.

Pitch perfect 2

A capo clamps onto the neck of string instruments like guitars to shorten the playable string length and increase pitch. Using a capo keeps fingering positions the same while allowing players to access higher notes more easily. Standing waves are created when plucked strings on guitars vibrate between their fixed ends. Given the tension, mass, and length of an open guitar string, the problem calculates its frequency, and then the length from the bridge needed to place a capo to double the frequency and produce a note an octave higher. The answer corresponds to placing the capo at the 12th fret, but that spot is where the soundboard is on classical guitars.

Lo1

You and your family visit Six Flags Over Texas for the ShockWave ride. The ride subjects riders to a harmonic wave motion generated by a large spring undergoing simple harmonic motion. To feel safer, you bring walkie-talkies but they only have a range of exactly 10m. The wavelength of the ride is calculated to be 8m based on the given wave speed and period shown in a time plot. For you and your father to be 10m apart during the ride, the required phase difference is calculated to be 5π/2. For your father to see you directly at peaks, you must be in phase, which means you are one wavelength or 10m apart. You can ride variations with smaller wavelength or higher wave speed

LO 7/8: Beats

The document is about beats, which occur when two waves of different frequencies are combined. Beats result in an amplitude modulation or lower frequency sinusoidal wave. This is demonstrated by Patty explaining to her brother Philly that the beating sound he is hearing from playing his flute alongside her violin is due to their waves interfering through the phenomenon of beats. Patty provides graphs to illustrate how the superposition of their out of phase waves results in the beating effect.

Tales of a colorblind scientist

A researcher uses a Michelson interferometer to test whether he is colorblind based on seeing a dress photo differently than a friend. He sets up an experiment to measure the wavelengths of two unknown light sources. By adjusting a mirror until 75 interference fringes are seen for each light and calculating the wavelengths using the mirror distance, he finds that one light is blue (450nm) and the other is yellow (570.1nm), indicating he is not colorblind.

Lo 2

The Ruben's Tube is a metal pipe sealed at both ends, with a speaker at one end and holes along the top to release flammable gas which is lit on fire. Different music frequencies cause the flames to form different shapes due to standing waves. When sound waves are produced through the speaker, areas of constructive and destructive interference cause larger and smaller flames. A 1.75m pipe with a sound velocity of 316m/s would have a fundamental frequency of 90.3Hz. A 542Hz frequency through this pipe would correspond to the 6th harmonic mode.

Physics 101 LO4 - Light Waves

This document provides a crossword puzzle about key concepts in physics related to light waves. The crossword contains terms like:
- Monochromatic
- Poisson spot
- Laser
- Spectrum
- Huygens principle
- Grating
- Reflection
- Resolution
- Fraunhofer diffraction
- Interference
- Diffraction phenomenon
- Coherence
- Michelson interferometer
- Aperture
- Phase
The crossword tests knowledge of important optical and wave concepts.

Learning object: wave speed relationships

A learning object on factors affecting the speed of travelling waves. The example given in this slideshow is how dolphins use echolocation to detect objects in the ocean.

Doppler's effect lo5 JY

The document discusses the Doppler effect, where the observed frequency of a wave depends on the relative motion between the observer and the source. It notes that a train horn will be higher pitched as a train approaches and lower pitched as it moves away, due to the Doppler effect. It provides examples of this occurring with both trains and cars. The document explains that the Doppler effect is caused by the observer and source moving relative to each other, resulting in a different observed frequency than what is emitted. It also lists the three scenarios that can cause the Doppler effect: a stationary source with a moving receiver, a stationary receiver with a moving source, and both the source and receiver in motion. Finally, it introduces the Doppler effect formula and poses sample

Lo7

2D waves propagate in a plane and can interfere with each other. Constructive interference occurs when crests meet, increasing amplitude. Destructive interference happens when crests meet troughs, decreasing amplitude to zero. The document uses the example of ocean waves interfering to make a boat shake more or less. Choosing a route where crests meet troughs (route B) would minimize shaking by destructive interference cancelling out the waves. However, this simple example does not translate well to real world ocean waves which are more complex.

Learning object 1

A model organizer wants to know how long it will take a supermodel to walk down a 30m runway and back while posing for 5 seconds at the end. Using physics concepts of the simple pendulum, the summary calculates that with the model's height of 180cm, foot mass of 1.5kg, leg length of 80cm, and extending their legs 25 degrees, their velocity would be 4.40 m/s. With this velocity, it would take the model 6.82 seconds to walk to the end of the 30m runway and back, for a total time of 18.64 seconds including the 5 seconds posing at the end.

Phase difference

This document discusses the displacement of two ropes being moved in alternating waves by the left and right arms. It asks for the speed of the rope in the right arm and the displacement equation for that rope.
It is determined that the ropes have the same speed of 5.6 m/s since they are π radians out of phase, meaning their displacements are equal and opposite. The displacement equation for the rope in the right arm is determined to be D(x,t) = -(1.0)sin(0.28x-1.57t) based on the properties of harmonic motion and using information from the graph shown.

Vivian Tsang- Learning Objects Energy SHM

This Learning Objective revolves around the concept of energy in simple harmonic motion. The concept of energy conservation will be discussed and terms such as kinetic energy and potential energy will be used in regards to a simplified version of Newton's Cradle. The submission is in power point format.

Phys 101 learning object 1

Phys 101 learning object 1

Lo weidi sun

Lo weidi sun

Maria's learning object

Maria's learning object

Lo2: Damped Oscillations

Lo2: Damped Oscillations

Learning object waves

Learning object waves

Sound levels

Sound levels

Lo2

Lo2

Physics LO 1

Physics LO 1

Pitch perfect 2

Pitch perfect 2

Lo1

Lo1

LO 7/8: Beats

LO 7/8: Beats

Tales of a colorblind scientist

Tales of a colorblind scientist

Lo 2

Lo 2

Physics 101 LO4 - Light Waves

Physics 101 LO4 - Light Waves

Learning object: wave speed relationships

Learning object: wave speed relationships

Doppler's effect lo5 JY

Doppler's effect lo5 JY

Lo7

Lo7

Learning object 1

Learning object 1

Phase difference

Phase difference

Vivian Tsang- Learning Objects Energy SHM

Vivian Tsang- Learning Objects Energy SHM

Hydrostatics Math Problems

This document contains 4 hydrostatics problems and information about Archimedes' principle. Problem 1 asks about the depth and danger faced by a scuba diver who fails to exhale during ascent. Problem 2 asks about the density of an unknown liquid in a U-tube. Problem 3 asks about the force required to lift an object at the bottom of the ocean. Problem 4 asks about the depth a block is submerged based on its dimensions and fluid densities. Archimedes' principle is explained as the upward buoyant force a fluid exerts on an object equaling the weight of the displaced fluid.

NAVAL ARCHITECTURE- GEOMETRY OF SHIP

This document provides an overview of topics related to ship geometry and hydrostatic calculations. It will cover ship lines, displacement calculations, stability concepts, buoyancy principles, and coefficients used in ship design like block coefficient and waterplane area coefficient. Methods for calculating areas, volumes, and centroids like Simpson's rules and trapezoidal rule will be explained. Key terms involved in floatation and stability like center of gravity, center of buoyancy, and reserve buoyancy will also be introduced.

Fluids

This document discusses fluids and fluid mechanics. It defines a fluid as anything that flows, including liquids and gases. It discusses the properties of fluids like density, pressure, viscosity, compressibility, and how these properties depend on factors like temperature. It introduces concepts like Pascal's principle, Archimedes' principle, Bernoulli's principle, and equations like the equation of continuity that relate key variables in fluid flow situations. Examples are provided to illustrate how to apply these principles and equations to calculate things like fluid pressure, velocity, and buoyant forces.

Chapter 3 linear wave theory and wave propagation

Small amplitude wave theory provides a mathematical description of periodic progressive waves using linear assumptions. It assumes wave amplitude is small compared to wavelength and depth. The key equations derived are the wave dispersion relationship and expressions for water particle velocity, acceleration, and pressure as functions of depth and phase. Wave energy is calculated as the sum of kinetic and potential energy. Wave power is the rate at which wave energy is transmitted shoreward and varies with depth from 0.5 in deep water to 1.0 in shallow water. Wave characteristics like height, length, and celerity change as waves propagate into shallower depths based on conservation of energy.

3.2 Wave Theory and Wave Propagation.pdf

Linear wave theory is based on small amplitude wave assumptions. It describes water waves using wave height, length, depth, velocity, and period. Key equations relate these for deep water, transitional, and shallow water waves. Particle velocity and pressure vary with depth and phase of the water wave. Wave celerity depends on water depth, with deep water waves independent of depth. Energy is transported by water particle motion and is calculated from wave characteristics.

Ship resistance in confined water

This document discusses the effects of shallow and restricted water on ships, including increased sinkage, trim, and resistance. It describes how squat, the combined sinkage and trim effect, increases sharply with ship speed. Empirical formulas are provided to estimate squat in canals and unrestricted shallow water. The changes to wave patterns and resistance at various ship speeds relative to the critical wave speed are also summarized.

Ship resistance in confined water

This document discusses the effects of shallow and restricted water on ships, including increased sinkage, trim, and resistance. It describes how squat, the combined sinkage and trim effect, increases sharply with ship speed. Empirical formulas are provided to estimate squat in canals and unrestricted shallow water. The changes to wave patterns and resistance at various ship speeds relative to the critical wave speed are also summarized.

CZMAR_lecture L3A1_and Assignment for Class

The document discusses wave theory and characteristics. It covers topics like orbital wave motion, wave classification based on water depth, linear wave theory, and particle motion under small amplitude waves. Key points include: (1) Water particles move in near-circular orbits as waves pass, with orbit diameter decreasing with depth; (2) Waves are classified as deep, intermediate, or shallow based on relative water depth; (3) Linear wave theory assumes small amplitudes and irrotational flow.

ch11 Fluids kj.pptx

(1) The document summarizes key concepts about fluids, including definitions of mass density, pressure, Pascal's principle, Archimedes' principle, and Bernoulli's equation. (2) It provides examples demonstrating calculations of pressure at different depths, forces exerted by fluids, and fluid flow rates. (3) The key equations covered relate pressure, density, depth, force, flow rate, and speed for problems involving fluids at rest or in motion.

archimedes principle

Archimedes was a Greek scientist who discovered the principle of buoyancy, now known as Archimedes' Principle, after noticing that the water level rose when he got into a bath. His work in geometry, mechanics, and understanding of levers helped the Greek army defeat the Romans. Archimedes' Principle states that the buoyant force on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. This principle is used in ship and submarine design and in instruments like lactometers and hydrometers that measure density. The formula for Archimedes' Principle relates the density of an object to the density of the fluid, allowing calculation of buoyant force without measuring volumes

ARCHIMEDES' PRINCIPLE

Archimedes was a Greek scientist who discovered the principle of buoyancy, now known as Archimedes' Principle, after noticing that he displaced water in a bath tub when he stepped inside. His work in geometry, mechanics, and understanding of levers helped the Greek army defeat the Romans. Archimedes' Principle states that the buoyant force on an object in a fluid is equal to the weight of the fluid displaced by the object. This principle is used in ship and submarine design and in instruments like lactometers and hydrometers that measure density. The formula for Archimedes' Principle relates the density of an object to the density of the fluid, allowing calculation of buoyant force without measuring volumes.

ARCHIMEDES' PRINCIPLE

Archimedes was a Greek scientist who discovered the principle of buoyancy, now known as Archimedes' Principle, after noticing that the water level rose when he got into a bath. His work in geometry, mechanics, and understanding of levers helped the Greek army defeat the Romans. Archimedes' Principle states that the buoyant force on an object in a fluid is equal to the weight of the fluid displaced by the object. This principle is used in ship and submarine design and in instruments like lactometers and hydrometers that measure fluid density.

WavesLinear.pdf

Linear wave theory assumes wave amplitudes are small, allowing second-order effects to be ignored. It accurately describes real wave behavior including refraction, diffraction, shoaling and breaking. Waves are described by their amplitude, wavelength, frequency, period, wavenumber and phase/group velocities. Phase velocity is the speed at which the wave profile propagates, while group velocity (always lower) is the speed at which wave energy is transmitted. Wave energy is proportional to the square of the amplitude and is divided equally between kinetic and potential components on average.

EightOS: ∞ Regeneration / Waves / Tension / Release

A slide show for the session of #eightos on regeneration and the principle of ∞ (panarchy) as applied for the organization of inner dynamics, physical body, interaction, across the different scales.
https://8os.io for more sessions

Synthesis Problem of Transverse Speed and Archimedes' Principle

The document presents a physics problem where a rock suspended from a wire has a fundamental frequency of 42.0 Hz in air and 28.0 Hz when submerged in an unknown fluid. Given the density of the rock and air, the problem is to calculate the density of the unknown fluid. Diagrams and concepts are provided to derive an equation relating the densities and frequencies, which can then be used to calculate the density of the unknown fluid as 1778 kg/m3.

What Is Archimedes Principle?

Archimedes' principle states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. The principle applies to objects of any shape and indicates that buoyancy reduces the apparent weight of fully submerged objects. Specifically, the apparent immersed weight of an object is equal to its actual weight minus the weight of the fluid it displaces.

Fluid mechanics

The document defines key concepts in fluid mechanics including:
1) Fluids are substances that can flow and take the shape of their container, with liquids having a definite volume and gases not.
2) Density is the concentration of matter in an object. Objects with lower density than the surrounding fluid will float.
3) Buoyant forces exerted by fluids produce an upward force on objects submerged in the fluid equal to the weight of fluid displaced.
4) Archimedes' principle states the upward buoyant force equals the weight of fluid displaced by the submerged object.

Chapter16openstax

- The document discusses transverse and longitudinal waves. Transverse waves have a disturbance perpendicular to the direction of propagation, while longitudinal waves have a disturbance parallel to the direction of propagation.
- It provides examples of different types of waves - ocean water waves are a combination of transverse and longitudinal waves, while waves on guitar strings are transverse. Sound waves in air and water are longitudinal.
- Differentiating between longitudinal and transverse waves is important because the energy and motion propagate in different directions for each type of wave. This affects how the waves behave and transfer energy.

Hydromechanics exercises

This document contains 16 exercises related to ship and offshore hydromechanics. The exercises cover topics such as regular waves in a towing tank, fluid motions in a rectangular tank, wave spectra characteristics, combined sea and swell spectra, radii of inertia of a ship's solid mass, estimating natural periods of ships, free roll decay tests, scaling data from model to full scale, equations of motion of a pontoon, wave spectra transformation, ship motion trials, superposition of motions and spectra, resistance and drift forces in irregular waves, estimation of mean second-order wave-drift forces, turning circle maneuvers, and directional stability. Solutions are provided for some of the exercises.

2004 PPT Large scale cyclonic vortices of the submerged gravity intruding s...

large scale submerged intruding currents are studied where the Rosby number is small enough, so that the Coriolis forces are importan

Hydrostatics Math Problems

Hydrostatics Math Problems

NAVAL ARCHITECTURE- GEOMETRY OF SHIP

NAVAL ARCHITECTURE- GEOMETRY OF SHIP

Fluids

Fluids

Chapter 3 linear wave theory and wave propagation

Chapter 3 linear wave theory and wave propagation

3.2 Wave Theory and Wave Propagation.pdf

3.2 Wave Theory and Wave Propagation.pdf

Ship resistance in confined water

Ship resistance in confined water

Ship resistance in confined water

Ship resistance in confined water

CZMAR_lecture L3A1_and Assignment for Class

CZMAR_lecture L3A1_and Assignment for Class

ch11 Fluids kj.pptx

ch11 Fluids kj.pptx

archimedes principle

archimedes principle

ARCHIMEDES' PRINCIPLE

ARCHIMEDES' PRINCIPLE

ARCHIMEDES' PRINCIPLE

ARCHIMEDES' PRINCIPLE

WavesLinear.pdf

WavesLinear.pdf

EightOS: ∞ Regeneration / Waves / Tension / Release

EightOS: ∞ Regeneration / Waves / Tension / Release

Synthesis Problem of Transverse Speed and Archimedes' Principle

Synthesis Problem of Transverse Speed and Archimedes' Principle

What Is Archimedes Principle?

What Is Archimedes Principle?

Fluid mechanics

Fluid mechanics

Chapter16openstax

Chapter16openstax

Hydromechanics exercises

Hydromechanics exercises

2004 PPT Large scale cyclonic vortices of the submerged gravity intruding s...

2004 PPT Large scale cyclonic vortices of the submerged gravity intruding s...

How to Add Colour Kanban Records in Odoo 17 Notebook

In Odoo 17, you can enhance the visual appearance of your Kanban view by adding color-coded records using the Notebook feature. This allows you to categorize and distinguish between different types of records based on specific criteria. By adding colors, you can quickly identify and prioritize tasks or items, improving organization and efficiency within your workflow.

NAEYC Code of Ethical Conduct Resource Book

NAEYC Code of Ethical Conduct Book

New Features in Odoo 17 Sign - Odoo 17 Slides

The Sign module available in the Odoo ERP platform is exclusively designed for sending, signing, and approving documents digitally. The intuitive interface of the module with the drag and drop fields helps us to upload our pdf easily and effectively. In this slide, let’s discuss the new features in the sign module in odoo 17.

How to Create Sequence Numbers in Odoo 17

Sequence numbers are mainly used to identify or differentiate each record in a module. Sequences are customizable and can be configured in a specific pattern such as suffix, prefix or a particular numbering scheme. This slide will show how to create sequence numbers in odoo 17.

Views in Odoo - Advanced Views - Pivot View in Odoo 17

In Odoo, the pivot view is a graphical representation of data that allows users to analyze and summarize large datasets quickly. It's a powerful tool for generating insights from your business data.
The pivot view in Odoo is a valuable tool for analyzing and summarizing large datasets, helping you gain insights into your business operations.

Year-to-Date Filter in Odoo 17 Dashboard

Odoo v17 introduces a new filtering feature, Year-To-Date (YTD), allowing users to define a filtered period for their data.

Webinar Innovative assessments for SOcial Emotional Skills

Presentations by Adriano Linzarini and Daniel Catarino da Silva of the OECD Rethinking Assessment of Social and Emotional Skills project from the OECD webinar "Innovations in measuring social and emotional skills and what AI will bring next" on 5 July 2024

SEQUNCES Lecture_Notes_Unit4_chapter11_sequence

Title: Relational Database Management System Concepts(RDBMS)
Description:
Welcome to the comprehensive guide on Relational Database Management System (RDBMS) concepts, tailored for final year B.Sc. Computer Science students affiliated with Alagappa University. This document covers fundamental principles and advanced topics in RDBMS, offering a structured approach to understanding databases in the context of modern computing. PDF content is prepared from the text book Learn Oracle 8I by JOSE A RAMALHO.
Key Topics Covered:
Main Topic : DATA INTEGRITY, CREATING AND MAINTAINING A TABLE AND INDEX
Sub-Topic :
Data Integrity,Types of Integrity, Integrity Constraints, Primary Key, Foreign key, unique key, self referential integrity,
creating and maintain a table, Modifying a table, alter a table, Deleting a table
Create an Index, Alter Index, Drop Index, Function based index, obtaining information about index, Difference between ROWID and ROWNUM
Target Audience:
Final year B.Sc. Computer Science students at Alagappa University seeking a solid foundation in RDBMS principles for academic and practical applications.
About the Author:
Dr. S. Murugan is Associate Professor at Alagappa Government Arts College, Karaikudi. With 23 years of teaching experience in the field of Computer Science, Dr. S. Murugan has a passion for simplifying complex concepts in database management.
Disclaimer:
This document is intended for educational purposes only. The content presented here reflects the author’s understanding in the field of RDBMS as of 2024.

"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...

"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY NĂM 2024
KHỐI NGÀNH NGOÀI SƯ PHẠM"

Imagination in Computer Science Research

Conducting exciting academic research in Computer Science

How to Handle the Separate Discount Account on Invoice in Odoo 17

In Odoo, separate discount account can be set up to accurately track and manage discounts applied on various transaction and ensure precise financial reporting and analysis

(T.L.E.) Agriculture: Essentials of Gardening

(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏.𝟎)-𝐅𝐢𝐧𝐚𝐥𝐬
Lesson Outcome:
-Students will understand the basics of gardening, including the importance of soil, water, and sunlight for plant growth. They will learn to identify and use essential gardening tools, plant seeds, and seedlings properly, and manage common garden pests using eco-friendly methods.

How to Create & Publish a Blog in Odoo 17 Website

A blog is a platform for sharing articles and information. In Odoo 17, we can effortlessly create and publish our own blogs using the blog menu. This presentation provides a comprehensive guide to creating and publishing a blog on your Odoo 17 website.

What is Rescue Session in Odoo 17 POS - Odoo 17 Slides

In this slide, we will discuss the rescue session feature in Odoo 17 Point of Sale (POS). Odoo POS allows us to manage our sales both online and offline. The rescue session helps us recover data in case of internet connectivity issues or accidental session closure.

OS ticketing tool: Troubleshooting Guide for DIKSHA’s concern.pptx

OS ticketing tool: Troubleshooting Guide for DIKSHA’s concern

CTD Punjab Police Past Papers MCQs PPSC PDF

CTD Punjab Police Past Papers MCQs PDF 2024

National Learning Camp Grade 7 ENGLISH 7-LESSON 7.pptx

grade 7 english

NC Public Schools Involved in NCDPI, Zipline Partnership

A list of the public schools where this workforce pathway will be offered in 2024-25.

formative Evaluation By Dr.Kshirsagar R.V

Formative Evaluation Cognitive skill

Edukasyong Pantahanan at Pangkabuhayan 1: Personal Hygiene

(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏.𝟏)-𝐅𝐢𝐧𝐚𝐥𝐬
Lesson Outcome:
-Students will recognize the importance of personal hygiene, such as washing hands before and after gardening, using gloves, proper care of any cuts or scrapes to prevent infections and etc

How to Add Colour Kanban Records in Odoo 17 Notebook

How to Add Colour Kanban Records in Odoo 17 Notebook

NAEYC Code of Ethical Conduct Resource Book

NAEYC Code of Ethical Conduct Resource Book

New Features in Odoo 17 Sign - Odoo 17 Slides

New Features in Odoo 17 Sign - Odoo 17 Slides

How to Create Sequence Numbers in Odoo 17

How to Create Sequence Numbers in Odoo 17

Views in Odoo - Advanced Views - Pivot View in Odoo 17

Views in Odoo - Advanced Views - Pivot View in Odoo 17

Year-to-Date Filter in Odoo 17 Dashboard

Year-to-Date Filter in Odoo 17 Dashboard

Webinar Innovative assessments for SOcial Emotional Skills

Webinar Innovative assessments for SOcial Emotional Skills

SEQUNCES Lecture_Notes_Unit4_chapter11_sequence

SEQUNCES Lecture_Notes_Unit4_chapter11_sequence

"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...

"DANH SÁCH THÍ SINH XÉT TUYỂN SỚM ĐỦ ĐIỀU KIỆN TRÚNG TUYỂN ĐẠI HỌC CHÍNH QUY ...

Imagination in Computer Science Research

Imagination in Computer Science Research

How to Handle the Separate Discount Account on Invoice in Odoo 17

How to Handle the Separate Discount Account on Invoice in Odoo 17

(T.L.E.) Agriculture: Essentials of Gardening

(T.L.E.) Agriculture: Essentials of Gardening

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- 1. Learning Object 3: Velocity of a Traveling Wave Igor Mihajlovic 25949141 Atmosphericdivingsuits(orADS) date backas far as the year 1715 wheninventorJohnLethbridge designedwhatwasessentiallyawoodenbarrel witharmholesthatalloweddiverstodescendtodepths of around18 metres.Itwas usedtorecoverlarge amountsof silverthathadsunkto the ocean floor afterthe wreckof the East Indiaman Vansittart. Figure 1. John Lethbridge'sprimitive divingsuit In the yearsafter,newermodelsof divingsuitsused"umbilical"cordswhichwere attachedtothe suit on one endand an oxygensupplyonthe other.These cordssuppliedoxygentothe helmetof the suit, allowingthe divertobreathe underwater.Thisisthe type of suitthatisinvolvedinthe following problem. Figure 2. A more contemporary model with umbilical cord
- 2. Problem: A 75-kilogramdiverisexploring underwaterina 100-kilogramdivingsuit.Hersuitisattachedto a 10 metre longumbilical cord thatrunsup to a boat on the surface of the water.Suddenly,the diverspotsa shark andfranticallyshakesthe cordto alerthercrewmates. Assumingthatthe cord weighs1 kilogram and the average densityof the diver withsuitis7000 kilogramspercubicmetre, approximatelyhow longwill ittake forher crewto notice the motioninthe cord? Ignore the dampingeffectof water onthe velocityof the wave. Solution: We knowthatthe velocityof awave in the cord can be expressedby the formula 𝑣 = √(𝑇 + 𝜇𝑥𝑔)/𝜇 where 𝑇 isthe tensioninthe cord,µ isthe linearmassdensityof the cord, 𝑔 isthe gravitational constant and 𝑥 is the heightfromthe divertoa pointinthe cord. Since we are askedforan approximation,we will assume thatthe tensioninthe cordwill increase byanegligible amountwithincreasedheight,and thuswe can approximate the velocityof the wave asconstant, 𝑣 = √𝑇/𝜇 We knowthatthe tensioninthe cordwill be equal tothe apparentweightof the diver plussuitinthe water,whichisgivenbythe formula 𝑊𝑎 = 𝑊 − 𝐹𝑏 where 𝑊 isthe weightof the diverplussuitonlandand 𝐹𝑏 isthe buoyantforce actingon the diver. The above formulacan be re-writtenas 𝑊 − 𝐹𝑏 = 𝑀𝑔 − 𝜌𝑉𝑔 where 𝑀 isthe mass of the diverplussuit, 𝑉 isthe volume of the diverand 𝜌 isthe densityof water. Substitutingknownvaluesintothe equation,we arrive at 𝑊𝑎 = 𝑀𝑔 − 𝜌𝑉𝑔 = (75𝑘𝑔 + 100𝑘𝑔) (9.81 𝑚 𝑠2)− (1000 𝑘𝑔 𝑚3 )( 75𝑘𝑔 + 100𝑘𝑔 7000 𝑘𝑔 𝑚3 )(9.81 𝑚 𝑠2) = 1471.5𝑁
- 3. We alsoknowthat the linearmassdensity of the cord is givenbythe formula 𝜇 = 𝑀𝑐/𝐿 where 𝑀𝑐 isthe mass of the cord and 𝐿 is the lengthof the cord. Substitutinginthe givenvalueswe arrive at 𝜇 = 1𝑘𝑔 10𝑚 = 0.1 𝑘𝑔 𝑚 We can now substitute inourcalculatedvaluesfor 𝑇 and 𝜇 intothe velocityequationtofindthe speed of the wave: 𝑣 = √𝑇/𝜇 = √ 1471.5𝑁 0.1 𝑘𝑔 𝑚 = 121.3 𝑚 𝑠 Nowthat we knowthe velocityof the wave,we canfindthe time ittakesfor the wave to travel the lengthof the cord by usingthe relationship 𝑣 = 𝑑 𝑡 where 𝑑 isthe distance travelledand 𝑡 isthe amountof time elapsed.Re-arrangingandsolvingfortime we arrive at 𝑡 = 𝑑 𝑣 = 10𝑚 (121.3 𝑚 𝑠 ) = 0.082𝑠 Thus,it takesabout0.082 secondsforthe diver'screwmatestorealize she isindanger. Picture Links: http://en.wikipedia.org/wiki/Atmospheric_diving_suit http://2.bp.blogspot.com/-AbE2EgIz060/UFvWGkk7mZI/AAAAAAAAAkc/gkSDecHSbto/s640/wpid-deep- sea-diver-19511.jpg