Two loudspeakers located along the x -axis as shown in Figure P16.61 produce sounds of equal frequency. Speaker 1 is at the origin, while the location of speaker 2 can be varied by a remote control wielded by the listener. He notices maxima in the sound intensity when speaker 2 is located at x = 0.75 m and 1.00 m, but at no points in between. What is the frequency of the sound? Assume the speed of sound is 340 m/s. Figure P16.61
Two loudspeakers located along the x -axis as shown in Figure P16.61 produce sounds of equal frequency. Speaker 1 is at the origin, while the location of speaker 2 can be varied by a remote control wielded by the listener. He notices maxima in the sound intensity when speaker 2 is located at x = 0.75 m and 1.00 m, but at no points in between. What is the frequency of the sound? Assume the speed of sound is 340 m/s. Figure P16.61
Two loudspeakers located along the x-axis as shown in Figure P16.61 produce sounds of equal frequency. Speaker 1 is at the origin, while the location of speaker 2 can be varied by a remote control wielded by the listener. He notices maxima in the sound intensity when speaker 2 is located at x = 0.75 m and 1.00 m, but at no points in between. What is the frequency of the sound? Assume the speed of sound is 340 m/s.
Three moles of an ideal gas undergo a reversible isothermal compression at 20.0° C. During this compression,
1900 J of work is done on the gas.
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Entropy change in a free expansion.
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What is the change of entropy of the gas?
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5.97 Block A, with weight
3w, slides down an inclined plane
S of slope angle 36.9° at a constant
speed while plank B, with weight
w, rests on top of A. The plank
is attached by a cord to the wall
(Fig. P5.97). (a) Draw a diagram
of all the forces acting on block
A. (b) If the coefficient of kinetic
friction is the same between A and
B and between S and A, determine
its value.
Figure P5.97
B
A
S
36.9°
Chapter 16 Solutions
College Physics: A Strategic Approach, Books a la Carte Edition (4th Edition)
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