Superman must stop a 100kmh train in 150 m to keep it
Superman must stop a 100km/h train in 150 m to keep it fromhitting a stalled car on the tracks. If the train's mass is3.6 x 10(to the 5th) kg, how much force must he exert? Compare tothe weight of the train.
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a hollow sphere of inner radius 80cm and outer radius 90cmfloats half -submerged in a liquid of density 800kgm3a what
superman must stop a 100kmh train in 150 m to keep it fromhitting a stalled car on the tracks if the trains mass is36 x
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a bed rests on two scales which are 20 meters apart a person lies down on the bed with their feet over one scale which
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