In this diagram, which force is represted by L? a. the force caused by the wings encoutering wind and air

b. the force caused by a draft of wind

c. the reaction force of wind and air that is pushed out of the way

d. the force that exists in reaction to gravity or weight

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)