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 the quark composition of a proton?
An object is let in free fall from a platform 20m high above Earth's surface. Describe the event in terms of energy and thus determine the speed of the object when it hits ground. Air resistance is negligible and gravitational acceleration is constant.
If a star with a radius of 600000km has a surface temperature of 6000K, calculate its luminosity
Steel has a density of 8030kg/m^3. Show that a steel ball with a diameter of 5cm weighs approximately 5N