Find the fundamental equation of the system.?

Question

It is found that a particular system obeys the relations
U = PV and P = BT2
where B is constant.
Find the fundamental equation of the system.

Answer 1

The fundamental equation of the system is the gravity energy holding a planet or star togehter.
P=Pressure hold the earth together
V= equals the velocity that of mass stucture being held together which is equal to" C"
E= equals the Energy content of gravitation used to hold the Earth togehter

Pressure of gravity =P =Me x C^2 / Vol . This is the fundamental equation of the system of gravitation.

Where Me = mass of the Earth
C=Velocity of light
Vol = volume of the Earth