Two charges q1 and q2exert a 90 N electrostatic force onto each other when they are 1 m apart. They are moved further away to a distance of 3 m. What will the new electrostatic force be?

30 N

810 N

270 N

10 N

2 answers

enough already, you try.
Amy pushes a 10 kg to the left with 20 N of force. If the force of friction is 5 N of force, calculate the acceleration of the box and its direction.