Choose as the system the coffee filter, the earth

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Reference no: EM1352393

Q. How much work did the movers do pushing a 160 kg crate 10.3 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50?

Q. A coffee filter of mass 1.1 grams dropped from a height of 3 m reaches the ground with a speed of 0.9 m/s. How much kinetic energy did the air molecules gain from the falling coffee filter? Start from the Energy Principle, and choose as the system the coffee filter, the Earth, and the air.

Reference no: EM1352393

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