a small metal ball is given a negative charge, then brought near to end a of the rod (figure 1). what happens to end a of the rod when the ball approaches it closely this first time?

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

What are the north and south poles of a solenoid change with?