Suppose a 0.30-kg mass on a spring that has been compressed 0.20 m has elastic potential energy of 1.0 J. How much further must the spring be compressed to triple the elastic potential energy?
a. 0.35 m
c. 0.10 m
b. 0.15 m
d. 0.05 m
B
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A) True B) False
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Indicate whether the statement is true or false
Refer to the sketch above of an H-R diagram for a star cluster. Which statement about this cluster is true?
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What happened at the start of the Cambrian Period?
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