An ideal gas in a cylinder occupies a volume of 0.065 m3 at room temperature (t = 293 k). the gas is confined by a piston with a weight of 100 n and an area of 0.65 m2. the pressure above the piston is equal to one atmosphere (atm = 1.013x105 pa). the piston is free to move up and down. 1) what is the magnitude of the net force on the piston? zero 50 n 100 n 2) briefly explain your answer.

zero

Explanation:

There are three forces acting on the piston

1. force due to atmospheric pressure = F1 downward

2. force due to gaseous pressure = F2 upward

3. force due to the weight placed on the piston = F3 = mg downward

As the piston is in equilibrium condition, so the net force on the piston is zero.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.