Recent content by dizzydani

ah-haa! that was it, that was what was causing all my problems. i thought that because it said they were 5.0x10^-10m apart i thought that was the diameter, and that i wanted the square of the radius... i just calculated it all again and i get it now... its carbon... thanks muchly big hugs...

full equation okay, so using Fe = -Ke Q1 Q2 / r^2 Fe = 5.5x10^-9 N -Ke = -9.0x10^9 Nm^2C^-2 Q1 = 1.6x10^-19C r^2 = 6.25x10^-20m^2 Q2 = 5.5x10^-9 x 6.25x10^-20 / -9.0x10^9 x 1.6x10^-19 Q2 = -2.39x10^-19C but the main part of the problem is the part where i have to use the 2...

[SOLVED] using electric force to calculate number of protons Homework Statement a hydrogen nucleus and a nucleus of an unknown atom are stationary, 5.0x10^-10m apart, the electric charge on the hydrogen nucleus is 1.6x10^-19C. express the charge you have calculated for the unknown nucleus...