A box moves 10 m horizontally when force F=20N is applied at an angle of 120°. What is the work done by the box?

How are calculation for velocity and speed different

In a system, when potential energy decreases, then entropy also decreases. true false

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.