Solve a and b using energy considerations.

a) a 0.80 kg coconut is growing 10 m above the ground in a palm tree. the tree is just at the edge of a cliff that is 15m tall. what would the maximum speed of the coconut be if it fell to the ground at the base of the tree?

b) what would the maximum speed be if it fell from the tree to the bottom of the cliff?

Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s