6. A student placed a cardboard box at the
bottom of a hill. The student then released a
ball...
Physics, 24.03.2021 20:40 ashleypere99
6. A student placed a cardboard box at the
bottom of a hill. The student then released a
ball from a point on the hill. The ball collided
with the box, and the box moved a distance
of 2 meters before both the box and the ball
came to rest. Which change to the initial
conditions would be most likfly to result in
the box moving a greater distance?
A. decreasing the mass of both the ball and the
box
B. decreasing the mass of the ball and
increasing the mass of the box
C. increasing the mass of the ball and
releasing it from a lower point on the hill
D. decreasing the mass of the box and
releasing the ball from a higher point on
the hill
Answers: 1
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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.
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Often called simply "velocity," this is the velocity of an object at a particular moment in time.
Answers: 1
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