In an avalanche, a large amount of snow slides down a hill. What energy conversion takes place during an avalanche?
A. Gravitational potential energy to kinetic energy
B. Kinetic energy to elastic potential energy
C. Elastic potential energy to kinetic energy
D. Kinetic energy to gravitational potential energy

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

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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