inexpensive‚andsafesoisoftenthefirstchoiceof a medical imaging method where feasible Sound waves • Sound wave propagate by longitudinal motion (compression/expansion)‚ but not transverse motion (side-to-side) • Can be modeled as weights connected by springs 1Ultrasonic Waves and properties • Mechanical waves are longitudinal compression waves • “Ultrasound” refers to frequencies greater than 20kHz‚ the limit of
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Radio Waves In the modern society‚ radio is the most widely used medium of broadcasting and electronic communication : it plays a major role in many areas such as public safety‚ industrial manufacturing‚ processing‚ agriculture‚ transportation‚ entertainment‚ national defense‚ space travel‚ overseas communication‚ news reporting and weather forecasting. In radio broadcasts‚ they use the radio waves which can be both microwaves and longer radio waves. These are transmitted in two ways: amplitude
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PHY 101 Lab Report Waves Lab Purpose The purpose of this laboratory experiment is to “investigate how the vibrating source affects selected characteristics of the sound produced” (Giancoli‚ 2006). Materials The following materials were used in the completion of this laboratory experiment: * Meter stick * Two paper towel rolls / cardboard tubes * Scissors * Two rubber bands * Wax paper * Transparent tape * Flashlight * Balloon Procedure Part 1:
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Characteristics and Nature of Waves In physics‚ a wave is a disturbance that travels through space and time‚ usually accompanied by the transfer of energy. Waves travel and the wave motion transfers energy from one point to another‚ often with no permanent displacement of the particles of the medium—that is‚ with little or no associated mass transport. They consist‚ instead‚ of oscillations or vibrations around almost fixed locations. For example‚ a cork on rippling water will bob up and down
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Vibrations and Waves 1) A wiggle in time is a A) vibration. B) wave. C) both D) neither Answer: A Diff: 1 Topic: Vibrations and Waves 2) A common source of wave motion is a A) wave pattern. B) harmonic object. C) vibrating object. D) region of variable high and low pressure. E) none of these Answer: C Diff: 1 Topic: Vibrations and Waves 3) Like
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Electromagnetic waves are radiated energy of all different strengths. They’re different from sound waves and water waves because they have the ability to travel through empty space. A vacuum. These are the only types of waves that do not need any type of medium because of photons. Photons are tiny particles that don’t get traveled through‚ but make up electromagnetic waves. Photons travel with the wave at about 300‚000 k/s. also known as the speed of light. The more energy the photons have‚ the brighter
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Seismic Waves What are seismic waves? Seismic waves are the waves of energy caused by breaking of rock within the earth or an explosion. These waves are the energy that travels through the earth and is recorded on seismographs. There are many different types of these waves‚ but the two main ones are the body waves that usually travel though in inner layer of the earth‚ and the surface waves that only move around the surface of the planet. Body waves travel through the inner layer of the earth
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conditions Technological change (ex. telephone‚ internet) Input price volatility (ex. oil industry) Legal and regulatory changes (ex. deregulation) Financing innovations (ex. junk bonds) That do not mean that all economic growth period has merger wave. In recession period‚ documents shows that never happened. When will be the next one ? Common caracteritic that show history -Boom of financial market (stock market) -Availibility of cash is an important‚ but not all merger are based on cash
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EXPERIMENT : Speed of sound 2. OBJECTIVE: : (1) To determine the wavelength of a sound in resonance air column. (2) To determine the speed of sound in air at room temperature. 3. APPARATUS : Resonance tube (air column) attached with water container and meter stick‚ thermometer‚ function generator‚ speaker. 4. THEORY: : Sound is a longitudinal wave in a medium. If n is the frequency
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SHOULD WE USE ELECTROMAGNETIC WAVES FOR MEDICAL PURPOSES? In terms of definition‚ Electromagnetic Wave is a “non-particulate radiation (radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge)”. Thus‚ in simpler words‚ electromagnetic is a transmission of energy‚ caused by the oscillation and of electric and magnetic fields. The word electromagnetic wave or electromagnetic radiation may sound complex. However‚ without
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