What is the gravitational potential energy of the Earthand sun ? The Earth to sun distance is arouund 150 million Km . The mass of the Earth is 5.9 xx 10^(24)kg and the mass of the sun is 1.9 xx 10^(30) kg.

What is the gravitational potential energy of the Earthand sun ? The E

1.	What is the gravitational potential energy of the Earthand sun ? The Earth to sun distance is arouund 150 million Km . The mass of the Earth is 5.9 xx 10^(24)kg and the mass of the sun is 1.9 xx 10^(30) kg.
Answer» Solution :Given:r = 150 million KM `r=150xx10^(6)km=150xx10^(9)m` `M_(e)=5.9xx10^(24)kg` `M_(s)=1.9xx10^(30)kg` To find: Potential energy=?? Formula:`{:("Potential"),("energy"):}}=-(GM_(e)M_(s))/(r)` `=-(6.67xx10^(-11)xx5.9xx10^(24)xx1.9xx10^(30))/(150xx10^(9))` `=-0.4984xx10^(-11-9+24+30)` `=-0.4984xx10^(34)` `{:("Potential"),("energy"):}}=-49.84xx10^(32)J`