Two identical, neutral metal spheres (A and B) connected by metal rod. 1x10^12 electrons are added to sphere A then rod is removed. What is charge of A and of B?

h

maths

sorry I am not sure but you can ask someboyd else

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west