Acharged solid aluminum ball hangs on an insulating wire. answer for the condition and field of the aluminum ball. condition: steady state / equilibrium / neither net electric field: zero field / nonzero and constant field / changing field

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?