electric charges?

1 ⤊

Ball 1 has a negative charge, and ball 2 is repelled by ball 1. Next, you see that ball 2 repels ball 3 and that ball 3 attracts ball 4. What is the electric charge on ball 4?

2007-06-27 08:24:44 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics

2 answers

Positive. Balls 1, 2 and 3 are all negative, since they repel each other. Ball 4 is positive since it attracts ball 3.

2007-06-27 10:03:49 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋

negative

2007-06-27 15:31:00 · answer #2 · answered by DAG 1 · 1⤊ 1⤋