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Elastic Potential Energy: an Athlete Stretches a Spring an Extra

Question 87

Multiple Choice

Elastic potential energy: An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has he transferred to the spring, if the spring constant is 52.9 N/cm?


A) 423 J
B) 4230 kJ
C) 423 kJ
D) 4230 J

Correct Answer:

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