Train cars are coupled together by being bumped into one another. suppose two loaded cars are moving toward one another, the first having a mass of 1.50×10 5 kg and a velocity of 0.30 m/s i, and the second having a mass of 2×10 5 kg and a velocity of −0.12m/s i. what is the energy lost in this inelastic collision?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

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?