A49.6-kg crate rests on a level floor at a shipping dock. the coefficients of static and kinetic friction are 0.584 and 0.399, respectively. what horizontal pushing force is required to (a) just start the crate moving and (b) slide the crate across the dock at a constant speed?
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According to newton’s first law of motion, which force is expected to cause a body to accelerate?
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Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp
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Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
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Explain what will happen if decomposers were apsent from a forest ecoysystem.
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A49.6-kg crate rests on a level floor at a shipping dock. the coefficients of static and kinetic fri...
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