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What do you think car designers do if the damage caused by a crash test is too severe?
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Amira pulls a 3 pound wagon 4 feet. how much work has she done?
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Most short-period comets do not have randomly oriented orbits because
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Two kilograms of air within a pistonâcylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
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A 100 kg lead block is submerged in 2 meters of salt water, the density of which is 1096 kg / m3. Es...
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