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25-02-2024
Physics

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A mercury drop of radius 1 cm is sprayed into 10⁶ drops of equal size. The energy expended in joule is (surface tension of mercury is 460 ∗10⁻³ N / m):

A. 0.057
B. 5.7
C. 5.7×10⁻⁴
D. 5.7×10⁻⁶

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