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Physics, 29.10.2020 16:20 andrewblack033
g Suppose that 3 J of work is needed to stretch a spring from its natural length of 36 cm to a length of 50 cm. (a) How much work is needed to stretch the spring from 40 cm to 42 cm? (Round your answer to two decimal places.) J (b) How far beyond its natural length will a force of 10 N keep the spring stretched? (Round your answer one decimal place.) cm
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