¡¡¡¡¡¡¡¡Need Help quick The energy output of a fan is 36 kWh. The fan is 75%
efficient

How much energy is lost to the surroundings?

• 12 kWh

• 36 kWh

• 48 kWh

• 84 kWh

Sublimation- which change of state is shown in model

Answer body lying face up ;

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j