First, using the balance, find the mass of a pumpkin on Jupiter. Then place the pumpkin on the spring scale and record its weight. Finally remove the pumpkin and weigh the masses from the balance on the spring scale. How do the weights compare? Gizmos

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

Iwas thinking the wavelength is one half its original value

Dust and gases contract.