Acharge is moving in a magnetic field that points to the left. what direction can the charge move and experience no magnetic force? check all that apply a. up b. down c. left d. right e. into the screen f. out of the screen .
what must be known to determine the direction of the magnetic force on a charge? check all that apply. a. the type of the charge b. the amount of the charge c. the direction of the magnetic field d. the velocity of the charge e. the strength of the magnetic field

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)