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A train is moving
with a velocity
of 90 km/hr. When he brakes is applied
the acceleration is reduced to 0.5m/s
Calculate the distance covered by the
train before
before coming to rest
solb

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.