Three charged particles are arranged in a line, as shown. Calculate the net electrostatic force on particle 3 (the - 4.0 uC on the right) due to the other two charges.​

Why should seat belts not be mandatory quick plz

At what time will the interfering waves have an amplitudeof zero?

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.