Physics, 12.08.2020 08:01 jjgymnast5779
A train is moving along a horizontal track. A pendulum suspended from the roof makes an angle of 4° with the vertical. If g=10m/s2, what is the acceleration of the train?
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Physics, 22.06.2019 19:30
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.
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Physics, 23.06.2019 02:00
Elements on the periodic table are ordered according to their
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Physics, 23.06.2019 07:00
If you drive 12 miles north and 35 miles east, what is the direct distance between you and your starting point?
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