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Mademuasel [1]
3 years ago
9

How far apart must two protons be if the electrical force acting on either one is equal to its weight on the earth's surface whe

n the mass of proton is 1.7×10^-27kg
Physics
1 answer:
BARSIC [14]3 years ago
7 0

Answer:

G M m / R^2 = F   force of attraction for proton

K e^2 / r^2 = F     force of attraction between 2 protons

G M m / R^2 = K e^2 / r^2

r^2 = K e^2 R^2 / (G M m)

r^2 = 9E9 * (1.6E-19)^2 * (6.37E6)^2 / (6.67E-11 * 5.98E24 * 1.7E-27)

r^2 = 9 * 2.56 * 40.6 / (6.67 * 5.98 * 1.7) * 10^-19

r^2 = 1.38 * 10^-30

r = 1.17E-15 m

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