andesmints442 andesmints442

13-03-2024
Physics

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A spherical metal ball 4 cm in radius is coated with a layer of ice of uniform thickness. The ice melts at the rate of 10 cubic cm per min. When the thickness of the ice is 1 cm, the outer surface are
A) 250 cm²/min
B) 300 cm²/min
C) 350 cm²/min
D) 400 cm²/min

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