Question

If The mass of a proton is 1.67×10^-27kg and the mass of an electron is 9.11×10^-31kg. Calculate the force of gravitation between
a) a proton and an election
b) two election
c) two protons
Take G =6.67×10^-11N m^2 kg^-2 .distance between the electrons is 2×10^-2m , distance between the proton is 4.0m,distance between the proton and electron is 5.4×10^-11m.

Answer 1

Explanation:

Gravitional force formula:

F=Gm1m2/r^2

b). Force between two electron:

F= 6.67×10^-11×(9.11x10^-31)^2/(2×10^-2)^2

after calculating it came:

1.38×10^-58N

a) Force between electron and protron:

F=6.67x10^-11×1.67×10^-27×9.1×10^-31/(5.4×10^-11)^2.

It came F= 3.4 ×10^-47N

C). Force between two protron.

F=6.67×10^-11×(1.67×10^-27)^2/(4^2)

F= 6.67x1.67x 1.67x 10^-11×10^-54/16

After calculating it came:

F= 1.16×10^-65 N .

Thank You