The graph in the accompanying figure shows the magnitude of, Ask an Expert

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The graph in the accompanying figure shows the magnitude of the force exerted by a given spring as a function of the distance x the spring is stretched.

a) How much work is needed to stretch this spring a distance of 5.00 cm , starting with it unstretched.

b) How much work is needed to stretch this spring from x1 = 2.00 cm to x2 = 7.00 cm ?

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