Suppose that 4 J of work is needed to stretch a spring from its natural length of 34 cm to a length of 55 cm. (a) How much work is needed to stretch the spring from 39 cm to 47 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length will a force of 30 N keep the spring stretched? (Round your answer one decimal place.) cm
Suppose that 4 J of work is needed to stretch a spring from its natural length of 34 cm to a length of 55 cm. (a) How much work is needed to stretch the spring from 39 cm to 47 cm? (Round your answer to two decimal places.) (b) How far beyond its natural length will a force of 30 N keep the spring stretched? (Round your answer one decimal place.) cm
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 39P: A sled of mass 70 kg starts from rest and slides down a 10 incline 80 m long. It then travels for 20...
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