Asked by Amy
The charge of a proton is 1.6 x 10-19 C. The mass of a proton is 1.673 x 10-27 kg. The constant in the universal law of gravitation is 6.673 x 10-11 Nm2/kg2. The constant in the Coulomb¡¯s law is 9x109 Nm2/C2. Calculate the numerical value of both the gravitational and electrostatic forces between the pair of protons.
Please help me with this question!!!
Please help me with this question!!!
Answers
Answered by
Damon
d is the same for both
I will do F d^2 so you see which wins :)
gravity
Fg * d^2 = G M1 M2
= 6.673*10^-11 * (1.673*10^-27)^2
= 18.7 * 10^-65
electrostatic
Fe d^2 = k Q1Q2
= 9*10^9 (1.6*10^-19)^2
= 23 * 10^-29
it is 10^-65 for gravity and 10^-29 for electricity
Electricy wins big time until you get something the mass of earth with a small charge :)
DIVIDE BOTH BY THE DISTANCE SQUARED TO GET THE FORCE IN NEWTONS :)
I will do F d^2 so you see which wins :)
gravity
Fg * d^2 = G M1 M2
= 6.673*10^-11 * (1.673*10^-27)^2
= 18.7 * 10^-65
electrostatic
Fe d^2 = k Q1Q2
= 9*10^9 (1.6*10^-19)^2
= 23 * 10^-29
it is 10^-65 for gravity and 10^-29 for electricity
Electricy wins big time until you get something the mass of earth with a small charge :)
DIVIDE BOTH BY THE DISTANCE SQUARED TO GET THE FORCE IN NEWTONS :)
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