(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Assuming a neutron star is made from an incompressible material, what is the hydraulic pressure 50m below the surface?

Mass = 1.98x10^30kg

Radius = 10km

2. The attempt at a solution

g=GM/r^2 = (6.67x10^-11 x 1.98x10^30)/ 10000^2 = 1.32x10^12 m/s^2

P=P[tex]_{0}[/tex] + [tex]\rho[/tex]gh Pa

[tex]\rho[/tex] = m/v = 1.98x10^30 / (4/3 x pi x 10000^3) = 4.73x10^17 kg/m^3

If pressure in space is 0 Pa, then P = 0 + 4.73x10^17 x 1.32x10^12 x 50

=3.12x10^31 Pa

Is this correct? Thank for your time!

Edit: I think it might be wrong because my equation assumes that space (as a vacuum) and the star are one material (?) :s.

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# Homework Help: Pressure in a neutron star

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