Springs: If 4.0 J of work are performed in stretching an ideal spring with a spring constant (force constant) of 2500 N/m, by what distance is the spring stretched?
A. 3.2 cm
B. 3.2 m
C. 0.3 cm
D. 5.7 m
E. 5.7 cm
Answer: E
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a. c b. some value less than 3c/4 c. some value more than 3c/4 d. 3c/4
Pumped water storage has too many practical reasons why it cannot be done
What will be an ideal response?