Physics

Physics, 19.06.2020 16:57, josephnoah12161

Suppose that 5 J of work is needed to stretch a spring from its natural length of 30 cm to a length of 43 cm. (a) How much work is needed to stretch the spring from 35 cm to 39 cm? (Round your answer to two decimal places.) J (b) How far beyond its natural length will a force of 15 N keep the spring stretched? (Round your answer one decimal place.) cm

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