# How far will the spring stretch?

A: When a 4.23kg mass is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.95cm. If the 4.23kg mass is removed how far will the spring stretch if a 1.58kg is hung on it instead?
B:How much work must an external agent do to stretch the spring 4.01cm from its unstretched...
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A: When a 4.23kg mass is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.95cm. If the 4.23kg mass is removed how far will the spring stretch if a 1.58kg is hung on it instead?

B:How much work must an external agent do to stretch the spring 4.01cm from its unstretched position?

B:How much work must an external agent do to stretch the spring 4.01cm from its unstretched position?

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