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BAED-PHYC2121 General Physics 1
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How many nodes does a standing wave in a string have at the frequency of the sixth harmonic?
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If a wave pulse is reflected from a free boundary, which of the following choices best describes what happens to the reflected pulse?
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When a sound wave moves through a medium such as air, the motion of the molecules of the medium is in what direction (with respect to the motion of the sound wave)?
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The density of a certain metal solid is 7.3 × 103 kg/m3, and its Young's modulus is 12 × 1010 N/m2. What is the speed of sound in this metal?
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When car shock absorbers wear out and lose their damping ability, what is the resulting oscillating behavior?
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12.3 Examples of Waves
Transverse waves travel with a speed of 283 m/s along a taut copper wire that has a diameter of 1.50 mm. What is the tension in the wire? (The density of copper is 8.93 g/cm3.)100%
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Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm and the other having a displacement above equilibrium of 70 cm. At this moment, what is the resulting displacement above equilibrium?
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A Carnot engine runs between a hot reservoir at Th and a cold reservoir at Tc. If one of the temperatures is either increased or decreased by 3.5 K, which of the following changes would increase the efficiency by the greatest amount?
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12.2 Describing Waves
If a radio wave has speed 3.00 × 108 m/s and frequency 99.7 MHz, what is its wavelength?0%
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13.5 Reflection and Scattering of Sound13.6 The Doppler Effect
A sound source of frequency 1000 Hz moves at 40.0 m/s toward a listener who is at rest. What is the apparent frequency heard by the listener? (speed of sound = 340 m/s)100%
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