The atmospheric pressure at sea level is about 1 105 Pa What is the force at sea level that air exerts on the top of a typical office desk 154 cm long and 78 cm wide?

Answer 1

A simple formula would do to get the force on the desk. Force = pressure x area.

Pressure = 1 x 105 pascal. Area = length x breadth = 1.54 x 0.78 = 1.2012 m2.

Hence the force = 1.2012 x 105 newton.

Answer 2

To find the force air exerts on the desk, you need to multiply the atmospheric pressure by the area of the desk. First, convert the dimensions to meters (1.54 m long and 0.78 m wide), then calculate the area (1.54 m * 0.78 m = 1.204 m^2). Finally, multiply the area by the pressure to find the force (1.105 Pa * 1.204 m^2 = 1.33 N).