Atmospheric Pressure is about 1.0x10^5 Pa. What is the downward force of the air on a desktop of surface area 1m^2?

Here we are dealing with force, pressure and area so we use the formula F=PA. We simply slot in the given numbers where P=1x105, and A=1. The resulting force is 1x105N. 

MK

Related Physics A Level answers

All answers ▸

(ii) Describe and explain how the horizontal component of the water jet varies from point X to point Y. (2 marks)


Define the term "Gravitational Potential" and write down a formula which defines it.


How do you work out the direction and strength of the force on a current carrying wire in a magnetic field?


How are X-Rays produced?