Mass on a Spring: A 0.250-kg stone is attached to an ideal spring and undergoes simple harmonic oscillations with a period of 0.640 s. What is the force constant (spring constant) of the spring?
A. 2.45 N/m
B. 12.1 N/m
C. 24.1 N/m
D. 0.102 N/m
E. 0.610 N/m
Answer: C
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