Recent content by faller217

I follow perfectly. Thanks very much for explaining! :)

I am studying electric flux through both a disk, cube, and sphere. I understand how the flux is calculated in a disk, but I don't understand how the flux through a cube with the point charge outside the cube is equal to zero when the disk is not. Is this because the disk is 2-D? Thank you for...

you would have to use a u substitute. Set u=2t, and du=2. So instead of it being 1/4cos(2t), it would be 1/8cos(2t). final : ((1/4)(t^2))+((1/8)(cos2t)) from 0 to 2 seconds .918295 - .125 = .793 radians

I was hoping someone could help me with this homework problem that has me stumped. Any assistance would be appreciated. Suppose the first stage of a two-stage rocket has total mass 1.30×10^4 kg, of which 1.10×10^4 kg is fuel. The total mass of the second stage is 1000 kg, of which 700 kg...