Question

The average atmospheric pressure at sea level is 1.012 × 106 dynes/m2. The value of

g (acceleration of gravity) at sea level is 980 cm/sec2. What is the mass in kg of the

column of air having a cross-sectional area of 1.00 cm2 at the earth’s surface and

extending to the limits of the atmosphere? (Recall that the dyne is a unit of force,

and force = mass × acceleration of gravity.)

Answer 1

$$PA=mg\\$$

$$1.012\cdot10^6(1)=(980)m\\m=1033\ g$$