Two vectors in Cartesian coordinates have components A = (2, 2, 1) and B = (4, 2, 5). Part (a) What is the length of the vector A? Part (b) What is the length of the vector B? Part (c) What is the angle, in degrees, between A and B?

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above