Two small, identical metal balls with charges 7.0 µC and 14.0 µC are held in place 1.9 m apart. In an experiment, they are connected for a short time by a conducting wire. a) What will be the charge on each ball after this experiment?
new charge on 7.0 µC ball = ? µC
new charge on 14.0 µC ball = ? µC

(b) By what factor will the magnitude of the electrostatic force on either ball change after this experiment is performed?

?

Please explain in detail so I can understand.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

e/c, where e is its total energy

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

prndulum needs thread, weight clock to time swings