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 ▸

What is meant by the doppler effect?


You have a layer of glass with a refractive index of 1.5 and the glass is surrounded by air. A light ray shines into the glass and Total Internal Reflection occurs at the glass-air boundary. What is the critical angle?


What is Olbers' Paradox?


A ball is kicked off a cliff at a height of 20m above ground and an angle of 30 degree from the horizontal, it follows projectile motion and lands after a time t. Its velocity at the maximum height it reaches is 20m/s, how long does it take it to land?