a boy Run with a velocity of 25 metre per second in the excitation of 5 metre per second square in 10 second calculate the final velocity of the body​

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.

If element x has 99 protons how many electrons does it have

When using the scientist method, which step comes last?