Along metal cylinder with radius a is supported on an insulating stand on the axis of a long, hollow, metal tube with radius b. the positive charge per unit length on the inner cylinder is l, and there is an equal negative charge per unit length on the outer cylinder. (a) calculate the potential v1r2 for (i) r 6 a; (ii) a 6 r 6 b; (iii) r 7 b. (hint: the net potential is the sum of the potentials due to the individual conductors.) take v = 0 at r = b.

the force required to move the cart is divided by three or 33.33 n.

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )