? Question Type the correct answer in the box. Round your answer to the nearest whole number.
Calculate the mass of the ball using PE = m*g x h. (Hint: Rearrange the formula to solve for m.)
kilograms.
A ball held 2.0 meters above the floor has 59 joules of potential energy. The ball's mass is about
(Use g = 9.8 N/kg.)

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1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.