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Need help please ! Thanks Suppose that 3 J of work is needed to stretch a spring from its natural length of 28 cm to

Need help please ! Thanks

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Suppose that 3 J of work is needed to stretch a spring from its natural length of 28 cm to a length of 44 cm. (a) How much work (in ]) is needed to stretch the spring from 36 cm to 40 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length (in cm) will a force of 50 N keep the spring stretched? (Round your answer one decimal place.) cm

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