Problems in physics

A marble is thrown up with vi, a ball is dropped at the same instant. Compare the accelerations of both while in flight.

If the velocity of a particle is zero, can its acceleration be nonzero? How?

Can the instantaneous velocity of an object ever be greater than the magnitude of the average velocity over a time interval?

A particle moving in one dimension starting at the origin with positive average velocity. Can it reach the negative x-axis?

Combination of Resistors..

Questions about any intermediate steps are welcomed..

RC circuit..

Questions about any intermediate steps are welcomed...

Combination of capacitors..

Questions about any intermediate steps are welcomed...