Homework Statement
I am looking for the absolute value of the electric field at point A (see picture below) relative to the whole charged rod at the left side.Homework Equations
-The Attempt at a Solution
I am not quite sure whether my choice for R and the boundaries of the integral are...
Homework Statement
Hey there,
We assume that the spring got no mass and there are no frictions. If you want to push down just as hard on m1 that if you release ... m2 will be just about to jump and leave the table?
Homework Equations
Newton and Hooke are our very best friends...
Masses on a "car"
Homework Statement
Hey.. I don't know exactly how to get the solution for this one...
We assume there are no frictions at all and we only look at the masses M, m1 and m2 (rope etc are massless)
I want to know how much force do i have to give to push M in such a way...