Answer to Question #165960 in Astronomy | Astrophysics for Alejandro

Astronomy | Astrophysics

Question #165960

If you have a box of 10 cm of edge, how many grains of sand would fit in this box?

Expert's answer

A grain of sand weighs about

m=10^{-6}g

N=\frac{V}{V_g}=\frac{V\rho}{m}\\N=\frac{10\cdot1.45}{10^{-6}}=1.45\cdot10^{7}

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