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Physics, 02.03.2020 18:09 tremainewoodley3030
A cup of hot coffee sits on your desk. Assume that the thermal energy in the coffee can be converted with an efficiency of 100%% to gravitational potential energy of the coffee-Earth system-enough so that the coffee rises up above the rim of the cup. Let the height of the coffee rise by 4.2 cmcm .Find the magnitude of the drop in temperature needed to accomplish this energy conversion. Use c = 4180 J/kg⋅∘C for coffee.
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Physics, 22.06.2019 20:30
Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?
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A cup of hot coffee sits on your desk. Assume that the thermal energy in the coffee can be converted...
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