Mathematics, 30.11.2021 03:50 ryan1kk

If the work required to stretch a spring 1 ft beyond its natural length is 12 ft-lb, how much work (in ft-lb) is needed to stretch it 9 in. beyond its natural length

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If the work required to stretch a spring 1 ft beyond its natural length is 12 ft-lb, how much work (...

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