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Forums
Question about spherical mass.

Question about spherical mass.

poorform

Why does a spherical mass have GPE distribution W say that is the following?

\displaystyle W=\frac{1}{2}\int_{0}^{\infty} \phi(r)~\rho(r)~4\pi r^2~dr

Reply 1

naxiv

Because mathematically half of the integr in respect to dr is W

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