39. The proton is in uniform circular motion, with the electrical force of the sphere on the proton providingthe centripetal force. According to Newton’s second law,F=mv2/r,whereFis the magnitude of theforce,vis the speed of the proton, andris the radius of its orbit, essentially the same as the radius ofthe sphere. The magnitude of the force on the proton isF=eq/4πε0r2qis the magnitude ofthe charge on the sphere. Thus,140eqr2=mv
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.