Final answer:
In a hydraulic system, pressure is transmitted equally to all parts. When a pressure of 20 Pa is applied to a small piston, a larger piston with twice the area will have a pressure of 40 Pa due to the transmission of pressure in the system.
Explanation:
Pressure in a hydraulic system is transmitted equally to all parts. Given that the small piston has a pressure of 20 Pa, the larger piston with twice the area will have a pressure of 40 Pa. This is because pressure is force per unit area and in a hydraulic system, the pressure is the same throughout.
Learn more about hydraulic system pressure transmission here:
https://brainly.com/question/42217199
