Aball is thrown directly downward with an initial speed of 8.00 m/s, from a height of 30.0 m. after what time interval does it strike the ground?

During the refrigeration cycle, what does the refrigerant do? absorbs and releases thermal energy by first vaporizing then condensing. absorbs and releases thermal energy by first condensing then vaporizing. insulates the thermal energy away from the cooling area. transfers thermal energy to the cooling area by condensing.