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Physics, 21.06.2019 16:30
In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.
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Physics, 21.06.2019 16:40
What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k
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Physics, 21.06.2019 19:00
What is work? how much work is done to move an object 0 meters?
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Physics, 22.06.2019 14:30
Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
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