Calculate the downward force exerted by the atmosphere on your head. If your flat top is approximately 6 cm. i

Question

this topic is about air pressure

Answer 1

Fifty years ago, atmospheric pressure was given as 14.7psi. That's pounds per square inch. Nowadays, we use the metric system. So we convert psi to N/m^2 or N/cm^2. Because I don't know the equivalent. Here goes:

atmospheric pressure= 14.7/2.2/9.8/2.54^2=0.1N/cm^2

You gave 6cm as your flat top. I think you mean 6cm^2

So, the force on your head is 0.1*6=0.6N.

The number 2.2 is the factor to convert pounds to kg, 9.8 is the factor to convert kg to Newton, and 2.54 is the factor to convert inches to cm.

Answer 2

Denise, sea level atmospheric pressure is 14.7 psi. Convert that to metric, and then multiply as necessary. If you need atmospheric pressure at different altitudes, perhaps NOAA can help you.