Final answer:
The question involves calculating the force exerted by gas on a piston in a cylinder using the formula F = P × A. At a pressure of 150 Pa and piston area of 0.40 m², the force is 60 N. The force remains constant if the piston's height changes, assuming temperature is constant and the system is closed.
Step-by-step explanation:
The question seems to be about the physics principles of pressure and force in hydraulic systems, specifically how they relate to pistons and cylinders. The force exerted by a piston can be calculated using the pressure-area relationship, which is a fundamental concept in fluid mechanics.
To calculate the force exerted by gas on the piston, you would use the formula: F = P × A, where F is the force, P is the pressure, and A is the area of the piston. In the provided reference question, given that the pressure P is 150 Pa and the area A of the piston is 0.40 m², the force F can be calculated as:
F = 150 Pa × 0.40 m² = 60 N
As for the change in force if the piston is moved to a height of 0.03 m, since the temperature remains constant and if we assume the system is closed and follows the ideal gas law, the force exerted by the gas on the piston would remain the same, because pressure in a closed system at constant temperature is not affected by changes in volume or shape, such as moving the piston.