P = 2лG p2R2
3
This is the closest I can get the equation hope it is ok
Physics Homework Solutions
#24382
an equation desctibing the approx pressure in Pa
equation describibg the approx pressure in Pa at centre of a planet that has radius R and as mean densiry P is given by
P = 2nG
--- p2 R2
3
where G is the universal gravitation constant
Radius of earth 6.37 x 10 3Km
Mean density 5.51 x 10 3kg m -3
Calculate the expected pressure at the centre of the earth, expressing answer in scientific notation to app. significant fiqures
G = 6.67 x 10 -11 Nm2kg -2
With the answer rearrange the equation given the equation in the form R=
Sorry couldnt get the correct symbols when laying out equation hope what I have done is ok. I have worked this out but I think I have done something wrong I would appreciate your help. I would realy appreciate it if you could put down the different stages so I know where I have gone wrong.
Thanks very much
Sandie
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