- #1

JWHooper

## Homework Statement

Diamond tip presses are now capable of creating pressures in excess of one million atmospheres. Suppose the tips of the presses were circles with an diameter of one millimeter. How much force must be applied to the tips to create a pressure of one million atmospheres?

## Homework Equations

P = F/A, where P is the pressure, F is the force and A is the area.

r is the radius in my solution.

## The Attempt at a Solution

P = 10^6 atm, r = 1.97 x 10^-2 in

P = (10^6)(14.7 lb/in^2) = 1.47 x 10^7 lb/in^2 (unit conversion)

A = (pi)(1.97 x 10^(-2))^2 = 1.22 x 10^(-3) in^2

F = PA = (1.47 x 10^7 lb/in^2)(1.22 x 10^(-3) in^2) =

**1.79 x 10^4 lb**

Did I do anything wrong? I just want to make sure.

J.