The doppler effect
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The document discusses the Doppler effect, which is when the observed frequency of a wave (such as sound) is different than the emitted frequency, due to relative motion between the source and observer. It causes changes in pitch for sound waves, and is used in technologies like police radar. It also describes how shock waves form conic sections called bow waves when an object moves at or faster than the speed of sound, creating sonic booms.
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The doppler effect
The document discusses the Doppler effect, which is when the observed frequency of a wave (such as sound) is different than the emitted frequency, due to relative motion between the source and observer. It causes changes in pitch for sound waves, and is used in radar guns and police radar. It also discusses shock waves, sonic booms, and how the Doppler effect applies to light waves and allows scientists to measure star rotation speeds and galaxy distances.
Doppler's effect
The Doppler effect is a change in frequency of a wave as the source of the wave and the observer move relative to each other. When the source moves towards the observer, the observed frequency increases. When the source moves away, the observed frequency decreases. This change in observed frequency is called the Doppler effect. The Doppler effect applies to all types of waves, including sound waves, light waves, and radar waves. It has many applications, such as measuring the speed of vehicles with police radar guns, detecting weather patterns with weather station radio waves, and measuring the recession of distant galaxies in astronomy.
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Dr.r.k.mishra(pgt phy) jnv tenughat
The Doppler effect describes how the observed frequency of a wave is different from the emitted frequency, due to relative motion between the source and observer. When the source is moving towards the observer, the observed frequency is higher than the emitted frequency. When the source is moving away, the observed frequency is lower. The Doppler effect applies to sound, light, and other waves and is used in applications like measuring the speed of distant galaxies and traffic enforcement.
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Doppler effect
The document discusses the Doppler effect, which is a change in frequency of waves observed by a detector as the source of the waves moves relative to the detector. It was first proposed by Christian Doppler in 1842 to explain the phenomenon for sound waves. The frequency observed is higher when the source approaches and lower when it recedes. Examples given include ambulance sirens, airplanes, and ducks swimming in water. The Doppler effect is applied in radar guns and explains the redshift of light from distant galaxies.
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The Doppler effect is a change in frequency of a wave as the source of the wave and the observer move relative to each other. When the source moves towards the observer, the observed frequency increases. When the source moves away, the observed frequency decreases. This change in observed frequency is called the Doppler effect. The Doppler effect applies to all types of waves, including sound waves, light waves, and radar waves. It has many applications, such as measuring the speed of vehicles with police radar guns, detecting weather patterns with weather station radio waves, and measuring the recession of distant galaxies in astronomy.
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This document provides a review for a Physical Science final exam, outlining 9 competencies covered on the exam. It includes 75 multiple choice and short answer questions testing understanding of concepts in motion, waves, electricity, thermodynamics, atomic structure, nuclear processes, bonding, and acids/bases. Sample questions assess knowledge of the scientific method, graphing, Newton's laws, energy transformations, electromagnetic radiation, the periodic table, nuclear reactions, and chemical equations.
Newton
This document provides 42 multi-part physics problems involving Newton's laws of motion. The problems cover concepts such as force, mass, acceleration, weight, and their relationships. Some sample answers are provided. The problems involve calculating unknown values like force, mass, or acceleration given information about real-world scenarios involving objects in motion or at rest under the influence of various forces.
Waves
1. This document discusses different types of waves including transverse, longitudinal, and electromagnetic waves. It defines key wave properties such as amplitude, wavelength, frequency, period, and wave speed.
2. Frequency is defined as the number of vibrations per second, measured in Hertz (Hz). Period is the time for one full vibration. Frequency and period are inversely related.
3. Examples are provided to demonstrate calculating wave properties like frequency, period, wavelength, and wave speed from information given about the wave.
Electric power
This document discusses electrical power and energy. It explains that power is calculated as current multiplied by voltage, and is measured in watts. It asks the reader to calculate the power needed to operate a clock radio drawing 0.05 amps from a household circuit. The document also explains that electrical energy is provided by power companies and sold to homeowners in units of kilowatt-hours, which is 1000 watts delivered for one hour. It provides an example of calculating the electrical energy used and cost for a 1200W toaster oven used for 15 minutes.
Ac dc and circuits
This document explains the differences between alternating current (AC) and direct current (DC). It defines AC as an electric current that periodically reverses direction and changes its magnitude continuously with time in contrast to DC, which flows in one direction. The document also outlines the key characteristics of series and parallel electric circuits. Series circuits have the same current flowing through all elements and the total voltage is divided among the elements. Parallel circuits have the same voltage across each element and the total current is the sum of the currents in the individual branches. The document concludes by noting that fuses are used to prevent circuit overloading by melting and breaking the circuit if too much current passes through.
Ohm's law worksheet ccp
This document provides an Ohm's Law worksheet with 6 practice problems calculating voltage, current, and resistance using the equations: I = V/R, R = V/I, and V = IR. Students are asked to use these equations to find the missing value in each circuit scenario, such as calculating the voltage applied to a light bulb with a known current and resistance.
Ohm's law's calculations
This document contains a worksheet on Ohm's Law with 14 problems. The worksheet provides the three forms of Ohm's Law and asks students to calculate values like voltage, current, and resistance using circuits with resistors and batteries. Students are asked to determine unknown values, total resistances, and currents in various circuit diagrams applying the relationships defined by Ohm's Law.
Ohm's law worksheet ccp
This document provides an Ohm's Law worksheet with 6 practice problems calculating voltage, current, and resistance using the equations: I = V/R, R = V/I, and V = IR. Students are asked to use these equations to find the missing value in each circuit scenario, such as calculating the voltage applied to a light bulb with a known current and resistance.
Ohm's law
This document discusses resistance and Ohm's Law. It describes the key parts of Ohm's Law including volts, amps, and resistance. It also explains how to calculate an unknown value using two known values and Ohm's Law. Examples are provided to demonstrate calculating current and resistance using Ohm's Law. The document also discusses how resistance affects current and electric shock, and provides examples of calculating current through the body at different resistances and voltages.
Static electricity and electrical currants
This document defines static electricity and current electricity. It explains that static electricity is caused by an imbalance of electric charges, usually through rubbing materials together, while current electricity involves the controlled flow of electrons. It distinguishes conductors that allow electron flow from insulators that do not, and describes how static charges build up and arc in lightning.
Acid bases and nuclear review sheet
This document covers acids and bases, including definitions, properties, examples and the pH scale. It also discusses acid rain, its effects and causes. For radioactivity, it defines different types and compares the strong force to the electric force in alpha and beta equations. It explains transmutation, half-life, fission and chain reactions. Additionally, it outlines nuclear power plants, how they create electricity from fission, reasons for past meltdowns and pros and cons of nuclear power. Finally, it addresses the big bang theory, evidence supporting it, the potential end of the universe, star formation, star types and life cycles.
Chemical reactions
This document discusses chemical equations and reactions. It explains that chemical equations are used to represent chemical reactions, and that they consist of reactants on the left side of the arrow yielding products on the right. It also describes how to balance chemical equations by adjusting coefficients so that the same number of each type of atom is on both sides of the equation. Balancing chemical equations ensures conservation of mass during chemical reactions.
Naming and writing compounds and molecules
This document provides instructions for writing formulas and naming ionic compounds, covalent molecules, and polyatomic ions. It explains that for ionic compounds, you write the symbols of the ions and use the crossover method to determine subscripts before naming the compound by writing the cation name followed by the anion name with "ide." For covalent molecules, Greek prefixes indicate subscripts and the name is written by specifying each element followed by the number of atoms. Polyatomic ions are also named and included in ionic compounds by looking up their formula and charge. Examples and practice problems are provided to demonstrate the process.
Bonding practice
1) The document provides instructions for drawing Lewis structures to show ionic and covalent bonding between various elements. Students are asked to draw Lewis structures for pairs of elements, and indicate electron transfers or sharing to write chemical formulas. 2) For ionic bonds, students should draw Lewis structures, arrows to show electron transfer, charges for each ion, and chemical formulas. 3) For covalent bonds, the instructions are to draw Lewis structures, circles around shared electrons, bond structures, and chemical formulas.
Atomic spectrum
The document discusses atomic spectra and the Bohr model. It explains that atoms can absorb and emit light at specific frequencies, and this atomic spectrum acts as a fingerprint that can be used to identify elements. The Bohr model describes electrons occupying different energy shells around the nucleus, and electrons absorbing and emitting energy by jumping between shells and releasing light. The document also briefly mentions flame tests and spectroscopes as methods to observe atomic spectra.
Rutherford
Ernest Rutherford (1871-1937) was a notable British physicist and chemist who made seminal contributions to the development of the modern atomic model. Through his gold foil experiment in 1911, Rutherford was able to formulate the Rutherford model of the atom, which established that atoms have a small, positively charged nucleus surrounded by low-mass electrons. For this breakthrough discovery, Rutherford received numerous honors including the Nobel Prize in Chemistry in 1908. His work fundamentally changed scientific understanding of atomic structure.
Meinter
Lise Meitner was an Austrian/German physicist born in 1878 who made significant contributions to nuclear physics. She received her doctorate in 1905 as the second woman to earn a PhD from the University of Vienna. In 1938, Meitner, Otto Hahn, and Fritz Strassmann discovered nuclear fission when bombarding uranium with neutrons. This splitting of uranium atoms led to additional neutrons and the potential for an explosive chain reaction. Sadly, her discovery was later used in 1945 for the atomic bomb dropped on Hiroshima. Meitner received several honors for her work, including the Max Planck medal in 1949.
Gell mann
Murray Gell-Mann was born in 1929 and is still living. He graduated valedictorian from Columbia Grammar School and attended Yale University at age 15. Gell-Mann won the 1969 Nobel Prize in Physics. In 1964, he discovered the quark, which makes up protons and neutrons in the nucleus. Quarks have never been isolated due to their small size of 10-15 mm. Gell-Mann is also interested in activities like bird watching and collecting antiques.
Democritus
Democritus was a Greek philosopher born around 460-457 BC in Abdera, Thrace. He developed the first atomic theory, proposing that all matter is made up of indivisible atoms moving through empty space. Democritus believed that atoms were the fundamental building blocks of the natural world and that their behavior determined natural phenomena. He and his mentor Leucippus are considered the founders of atomic theory. Democritus was highly respected in his lifetime for making discoveries and predictions that were later proven true.
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How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
"Choosing proper type of scaling", Olena Syrota
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
Artificial Intelligence and Electronic Warfare
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zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Taking AI to the Next Level in Manufacturing.pdf
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
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“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...Edge AI and Vision Alliance
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/how-axelera-ai-uses-digital-compute-in-memory-to-deliver-fast-and-energy-efficient-computer-vision-a-presentation-from-axelera-ai/
Bram Verhoef, Head of Machine Learning at Axelera AI, presents the “How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-efficient Computer Vision” tutorial at the May 2024 Embedded Vision Summit.
As artificial intelligence inference transitions from cloud environments to edge locations, computer vision applications achieve heightened responsiveness, reliability and privacy. This migration, however, introduces the challenge of operating within the stringent confines of resource constraints typical at the edge, including small form factors, low energy budgets and diminished memory and computational capacities. Axelera AI addresses these challenges through an innovative approach of performing digital computations within memory itself. This technique facilitates the realization of high-performance, energy-efficient and cost-effective computer vision capabilities at the thin and thick edge, extending the frontier of what is achievable with current technologies.
In this presentation, Verhoef unveils his company’s pioneering chip technology and demonstrates its capacity to deliver exceptional frames-per-second performance across a range of standard computer vision networks typical of applications in security, surveillance and the industrial sector. This shows that advanced computer vision can be accessible and efficient, even at the very edge of our technological ecosystem.What is an RPA CoE? Session 1 – CoE Vision
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Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
Introduction of Cybersecurity with OSS at Code Europe 2024
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Northern Engraving | Nameplate Manufacturing Process - 2024
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Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
Energy Efficient Video Encoding for Cloud and Edge Computing Instances
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How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
Generating privacy-protected synthetic data using Secludy and Milvus
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Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
GraphRAG for LifeSciences Hands-On with the Clinical Knowledge Graph
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[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
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Ever-changing customer expectations demand more modern digital experiences, and the bank needed to find a solution that could provide real-time data to its customer channels with low latency and operating costs. Join this session to learn how Citizens is leveraging Precisely to replicate mainframe data to its customer channels and deliver on their “modern digital bank” experiences.
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How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
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The doppler effect
- 1. The Doppler Effect October 30, 2013
- 2. Objectives 1. Identify the Doppler effect 2. Explain its cause and uses 3. Understand the terms and cause of Sonic Boom
- 3. Doppler Effect Fire Engine Car Horn Change in frequency due to the motion of the vibrating object
- 4. The Doppler Effect
- 5. Sound Waves 1. As an object moves toward you, frequency seems shorter – higher pitch 2. As an object moves away, frequency seems longer – lower pitch 3. Never the speed that changes, just the frequency
- 6. The Doppler Effect
- 7. Uses of the Doppler Effect Doppler Radar Police Radar
- 8. Wave Barrier and Bow Waves When the source is moving as fast as the waves it produces it reaches a wave barrier Once it passes its wave speed is creates a V shaped pattern – Bow Wave
- 9. Shock Waves and Sonic Booms Shock Waves – Form overlapping cones that Form a V Sonic Boom – sharp crack heard when supersonic aircraft’s shock waves pass
- 11. The Sonic Boom Doppler Demo's
- 12. Light Waves 1. Red shift – frequency is lower therefore red light is seen 2. Blue shift – frequency is higher therefore blue light is seen
- 14. The Stars Scientists use this knowledge to measure the speed of rotation of the stars And the distance of galaxies