Physics, 06.04.2021 08:20, Hjackson24
A 95 kg falling trunk strikes the ground with a speed of 40 m/s. Assuming that there is no loss of energy due to air resistance, what is the height from which the trunk falls?
Answers: 2
Physics, 22.06.2019 15:50, rosepetals2938
If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?
Answers: 1
Physics, 22.06.2019 16:00, lazavionadams81
At what time will the interfering waves have an amplitudeof zero?
Answers: 1
Physics, 22.06.2019 19:30, isiahb123
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
A 95 kg falling trunk strikes the ground with a speed of 40 m/s. Assuming that there is no loss of e...
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