The ratio of spring constants of two springs is \( 2: 3 \). What is the ratio of their potential...

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The ratio of spring constants of two springs is \( 2: 3 \). What is the ratio of their potential energy, if they are stretched by the same force?
(a) \( 2: 3 \)
(b) \( 3: 2 \)
(c) \( 4: 9 \)
(d) \( 9: 4 \)
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