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3) How much work is done when a sled 3.5-kg and a
rider of 50-kg are pulled across the snow a distance of
15-m?
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What are chlorofluorocarbons and what impact do they have on the atmosphere?
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Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost
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An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
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3) How much work is done when a sled 3.5-kg and a
rider of 50-kg are pulled across the snow a dista...
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