iv) A large ball 2 m in radius is made up of a
rope of square cross section with edge
length 4 mm. Neglecting the air gaps in
the ball, what is the total length of the
rope to the nearest order of magnitude?
(Ans : ~10⁶m = 10³km)
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Answer:
1047.2 km
Explanation:
the volumes should be equal
16x10∧-6 L = 16π/3
L = π/3x10∧6m = π/3x10∧3km
L = 1047.2 km
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