- #1
GotTrips
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Hi all
I am in deperate, desperate, desperate need of some help. I have this question that I have been working on for hours and have made no progress at all.
Here is the question.
Write down the "conservation of mass" equation for dm(r)/dr, where m(r) is the mass inside radius "r". Assume that the pressure inside a star at radius r is given by
P(r) = Pc/R(R-r)
where Pc is the central pressure and R is the stars outer radius. Combine this and the equation of hydrostatic equlibrium to find an expression for m(r). Hence show that m(r) x r5/2
PLease please help,
any advice on how to solve this or the answer will be great.
Thanks All
I am in deperate, desperate, desperate need of some help. I have this question that I have been working on for hours and have made no progress at all.
Here is the question.
Write down the "conservation of mass" equation for dm(r)/dr, where m(r) is the mass inside radius "r". Assume that the pressure inside a star at radius r is given by
P(r) = Pc/R(R-r)
where Pc is the central pressure and R is the stars outer radius. Combine this and the equation of hydrostatic equlibrium to find an expression for m(r). Hence show that m(r) x r5/2
PLease please help,
any advice on how to solve this or the answer will be great.
Thanks All