- #1

JWHooper

## Homework Statement

The density of mercury is 13595 kg/m^3. An barometer on the planet X shows a pressure reading of 1500 mm-Hg. The gravitational field strength at the surface of the planet is 12.0 m/s^2. What is the atmospheric pressure at the planet's surface?

## Homework Equations

P = F/A

D = m/V

P = P_0 + Dhg

P is the pressure, D is the density, m is the mass, F is the force, A is the area, V is the volume, h is the depth, and g is the gravitational constant.

## The Attempt at a Solution

D = 13595 kg/m^3 (mercury)

P = 1500 mm-Hg

g = 12.0 m/s^2

I don't know what atmospheric pressure is, really. If anyone could help, I would be very appreciated. This is important, because I don't want to fail my physics class.

J.