# (II) How much pressure is needed to compress the volume of

## Problem 44P Chapter 9

Physics: Principles with Applications | 6th Edition

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Problem 44P

(II) How much pressure is needed to compress the volume of an iron block by 0.10%? Express your answer in N/m2, and compare it to atmospheric pressure (1.0 x 105 N/m2).

Step-by-Step Solution:

Step-by-step solution

Step 1 of 3</p>

V0=V                                           (The initial volume of the iron block)

ΔV= - 0.1%= 0.001V                  (decrease in volume of the iron block under pressure change)

B=90x109N/m2                                         (bulk modulus of iron)

ΔP=?                                           (the increase in pressure to change the volume of the iron block)

We are going to find the pressure which make the volume of the iron decrease by 10%.

Step 2 of 3</p>

Since ΔP =ΔF/A

Step 3 of 3

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