Why does a blacksmith heat the metal rim to fix it on a cart wheel?
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A blacksmith heats the metal rim to fix it onto a cart wheel because a metal rim is made slightly smaller. On heating, the rim expands and fits onto the wheel. Then on cooling, the rim contracts and fits tightly onto the wheel.
Explanation:
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Answer:
A blacksmith heats the metal rim to fix it onto a cart wheel because a metal rim is made slightly smaller.
On heating, the rim expands and fits onto the wheel.
Then on cooling, the rim contracts and fits tightly onto the wheel.
Explanation:
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