Superman is standing 393 m horizontally away from lois lane. a villain drops a rock from 4.00 m directly above lois. if superman is to intervene and catch the rock just before it hits lois, what should be his minimum constant acceleration? if the acceleration is toward lois, enter a positive value. if the acceleration is away from lois, enter a negative value.

The force will determine the acceleration.

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.