Anonymous asked 8/8/2015 How to deal with negative people? I live around them and they always make me depressed.
Anonymous asked 7/31/2015 A uniformly charged rod (length = 2.0 m, charge per unit length = 3.0 nC/m) lies on the x-axis.
Anonymous asked 7/30/2015 Why does lightning pass though air? What causes the speed it uses to pass through air?