Best writers. Best papers. Let professionals take care of your academic papers

Order a similar paper and get 15% discount on your first order with us
Use the following coupon "FIRST15"

Q and mass m | Mathematics homework help


A small metal ball with positive charge  q and mass m is attached to a very light string, as shown in (Figure 1) . A larger metal ball with negative charge Acˆ’Q is securely held on a plastic rod to the ceiling. The distance between balls’ centers is r.

Part A

Write an expression for the magnitude of the force T that the string exerts on the ball. Assume that the values of qand Q are positive.

Express your answer in terms of the variables qmQr, and appropriate constants.


Source link