When a force of 5 N acts on a surface, it produces a pressure of 500 Pa. The area of surface then must be

The magnitude of atmospheric pressure is equal to the pressure exerted by a :

The atmospheric pressure is usually measured in the unit of :

Two tiny holes are made in a plastic bucket, one near the middle part and the other just above bottom when this bucket is filled with water, the water rushes out from the bottom hole much faster than from the upper hole. What conclusion do you get from this observation?

What is common in the working of the devices such as a drinking straw, a syringe, a dropper and a rubber sucker?