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Physics, 03.12.2020 19:50 xxxamslashxxx9

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) 4230 kJ
b) 4230 J
c) 423 kJ
d) 423 J

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