Answer:
W = 0 J
Explanation:
The amount of work done by gas at constant pressure is given by the following formula:

where,
W = Work done by the gas
P = Pressure of the gas
ΔV = Change in the volume of the gas
Since the volume of the gas is constant. Therefore, there is no change in the volume of the gas:

<u>W = 0 J</u>
I think its all four of them could be wrong but try all four !!!!!!
weight less on moon than on earth.
high on lift off - G force
low in orbit.
zero at a point between earth and moon
It was developed through Democritus who was a greek philosopher.
Hope this helps