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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Two spheres are made of the same metal and have the same radius, but one is hollow and the other is solid. The spheres are taken through the same temperature increase. Which sphere expands more? (a) solid sphere, (b) hollow sphere, (c) they expand by the same amount, or (d) not enough information to say.

To determine
The expansion of the sphere.

Explanation

The solid sphere and the hollow sphere have the same radius and are made of the same metal. As the temperature increases, the spheres expand.

Conclusion:

The spheres are made of the same metal. Therefore, co-efficient of expansion is the same for the spheres. In the hollow sphere, the cavity expands in the same way as if the cavity had the metal inside it. Thus, option (b) is correct...

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