Physics, 23.07.2020 01:01 StrangerMo
(a) According to Hooke's Law, the force required to hold any spring stretched x meters beyond its natural length is f(x)=kx. Suppose a spring has a natural length of 20 cm. If a 25-N force is required to keep it stretched to a length of 30 cm, how much work is required to stretch it from 20 cm to 25 cm? (b) Find the area of the region enclosed by one loop of the curve r=2sin(5θ).
Answers: 1
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(a) According to Hooke's Law, the force required to hold any spring stretched x meters beyond its na...
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