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 are the postulates of special relativity?
How would I derive Kepler's third law from Newton's law of gravitation and the equations of circular motion?
What is the total capacitance of a circuit containing a 3microfarad capacitor and a 2microfarad capacitor in series.
Why does an absorption spectrum (of eg Helium) show dark lines?