A banana is launched at a monkey who is 100m above the ground horizontally at a height of 100m, the cannon and and the monkey are 100 meters apart. The monkey falls from the tree as soon as the banana gets launched, if the banana hits the monkey, what is the velocity of the banana?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.