Ihave a truck traveling forward at 20 m/s and i proceed to shoot a ball horizontally backwards from the back of the truck at 20 m/s. what direction does the ball go?

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?