# Answer to Question #20867 in Atomic and Nuclear Physics for julio

Question #20867

when earth and moon are separated by a distance of 3.84x10^8 meters, the magnitude of gravitational force of attraction between them is 2.0x10^20netwons.What would be magnitude of gravitational force if earth and moon separated by distance of 1.92x10^8 meters?

Expert's answer

F=Gm1m2/r^2

r0=3.84x10^8 meters

r1=1.92x10^8 meters

F0=Gm1m2/r0^2

F1=Gm1m2/r1^2

F1=F0(r0^2/r1^2)=F0*4=8.0x10^20netwons

r0=3.84x10^8 meters

r1=1.92x10^8 meters

F0=Gm1m2/r0^2

F1=Gm1m2/r1^2

F1=F0(r0^2/r1^2)=F0*4=8.0x10^20netwons

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