(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A solid copper cube has an edge length of 87.0 cm. How much pressure must be applied to the cube to reduce the edge length to 85.7 cm? The bulk modulus of copper is 1.4 multiplied by 1011 N/m2.

2. Relevant equations

Vcube= s^3

F/A=(B x deltaV)/V

p=F/A

p=(B x deltaV)/V

3. The attempt at a solution

V= (.870m)^3= .659m^3

Vn= (.857m)^3= .629m^3

deltaV= V-Vn= .03m^3

p=(1.4e^10N/m^2)x(.03m^3)/(.659m^3)= 6.37e^9N/m^2

This is apparently not the answer???

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Hydrolic Pressure and Bulk Modulus

**Physics Forums | Science Articles, Homework Help, Discussion**