Physics, 06.02.2021 14:00 lamooothegoat
Sound moves through the air at a speed of 340 m/s. How long would it take to hear your echo in a canyon which is 50 meters away? Show all of your work with an explanation of your answer.
Answers: 3
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Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
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A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Sound moves through the air at a speed of 340 m/s. How long would it take to hear your echo in a can...
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