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f = mv^2/r

F is the force of attraction between the electron and proton

m is the mass of the electron

v is the velocity it spins at

r is the radius

(9.11)(1.67*10^-27)K/r^2=[(1.67*10^-27)((4.6*10^6)^2)]/r

when i solve for r, it is not correct, can you tell me if it is setup right

thanks