A copper sphere of diameter 18 cm is drawn into a wire of diameter 4 mm. The
length of the wire will be:
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Answer:
volume of sphere = volume of cylindrical wire
4/3 π R^3 = π r^2 h
4 × 90^3 / 3 = 2^2 × h
90 × 90 × 90 /3 = h
h = 243 cm
Step-by-step explanation:
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