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April 24, 2014

April 24, 2014

Posted by **Chan** on Monday, November 30, 2009 at 5:05pm.

A spherical steel ball bearing has a diameter of 2.540 cm at 23°C.

(a) What is the diameter when its temperature is raised to 94°C?

___ cm

(b) What temperature change is required to increase its volume by 0.9%?

____°C I need help on part b only, Thank again.

- physic -
**bobpursley**, Monday, November 30, 2009 at 5:07pmwhat is the initial volume? What is the coefficent of volume expansion for steel?

Use the equation to find new volume, then find diameter.

b) same technique, you know the volume change.

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