Starting from rest, an arrow is shot horizontally from a bow with an exit velocity of 25.0 m/s. The average force exerted on the arrow by the bow is then doubled. Assume all other relevant variables remain constant EXCEPT time. Determine the new exit velocity of the arrow.

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

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.

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created