Answer:
The radius of the sphere is 3
Step-by-step explanation:
r = (3(36) (π) / (4) (π)) ^ ⅓
Cancel out 4π in both numerator and denominator
r = 3 × (36π/4π) ^ ⅓
Simplify
r = (3 × 9) ^ ⅓
Multiply 3 and 9 to get 27
r = 27 ^ ⅓
Calculate 27 to the power of 1/3 and get 3
r = 3
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the potential energy of the spring
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