Apomegranate is thrown from ground level straight up into the air at time t=0 with velocity 240 feet per second. its height in feet at t seconds is f(t)=-16 t^2+240 t. find the time it hits the ground and the time it reaches its highest point. hits the ground when t= 4 second (include units) reaches highest point when t= 2 second (include units) maximum height =

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.