How Does Spinning a Mass Affect Atomic Spacing in a Wire?

AI Thread Summary
Whirling a mass attached to a wire affects atomic spacing due to the forces exerted on the wire. Young's modulus relates stress and strain, which are necessary to determine how much the wire extends under the applied force. To find the force, Newton's second law can be applied to the mass, requiring the calculation of its acceleration. The acceleration of the mass is crucial for determining the tension in the wire, which ultimately influences atomic spacing. Understanding these relationships allows for the calculation of how far the atoms in the wire move apart compared to their resting state.
quark001
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I whirl a mass m attached to a wire with length L and diameter d around my head in the horizontal plane. The mass takes t seconds to move around a circle. How far do the atoms in the wire move apart, compared to their spacing at rest? Young's modulus is given.

Okay, so Y = stress/strain. For strain I need the force on the wire, and from there I can solve for the extension of the wire and use that to calculate how far the atoms move. But how do I get the force?
 
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quark001 said:
But how do I get the force?
Apply Newton's 2nd law to the mass. What's its acceleration?
 
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