# Physics reviewer

Jun 17th, 2015
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1. The law of acceleration is also known as __________.A. D’Alembert’s principle B. Newton’s first law C. Newton’s second law D. Newton;s third law. 2. Newton’s first law of motion is also known as the law of _________.A. Reaction B. Impulse and momentum C. Acceleration D. Motion

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1. The law of acceleration is also known as __________.A. DAlemberts principleB. Newtons first lawC. Newtons second lawD. Newton;s third law2. Newtons first law of motion is also known as the law of _________.A. ReactionB. Impulse and momentumC. AccelerationD. Motion3. Which of the following forces is an example of non-conservative force based on the law of conservation of mechanical energy?A. Compressive forceB. Gravitational forceC. Elastic forceD. Frictional force4. Waves that travel through some material medium as it displaced from an equilibrium state is?A. Mechanical waveB. Longitudinal waveC. Periodic waveD. Elastic wave5. The electrons emitted from a hot filament are accelerated in an electric field until their velocity is 5 x 10 to the 9th power cm/sec. Find the wavelength of the electrons.A. 0.660B. 0.009C. 0.146D. 0.1536. A steel wire 2 meters long has a mass of 20 grams and stretched with a tension of 1000 Newtons. What is the velocity of propagation of a transverse wave in the wire?A. 316 m/secB. 300 m/secC. 422 m/secD. 329 m/sec7. One end of a horizontal spring is attached to a prong of electrically driven tuning fork whose frequency of vibration is 240 vib/sec. The other end passes over a pulley and supports a weight of 6 lb. The linear weight density of the spring is 0.0133 lb/ft. What is the speed of a transverse wave in the spring?A. 130 ft/secB. 110 ft/secC. 120 ft/secD. 118 ft/sec8. When a s

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