A 10 m long silver wire has a resistance of 2 ohms. How thick is it?

A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s

The plum pudding model of the atom states that ?

If element x has 99 protons how many electrons does it have