Agirl on a spinning amusements park is 12m from the center of the ride and has a centripetal acceleration of 17 m/s^2. what is the girl's tangential speed?

In the first law of thermodynamics, triangle e=q-w, what does q stand for

How many times did thomas edison mess up the light bulb

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.