Ok, so m1 = 5,000 kg moving 40 m/s to the right and m2 = 3,000 Kg and moving 40 m/s to the left.
a. How fast are the two masses moving after the collision? Pay no attention to the
15 mph after picture.
b. If the brakes lock and the coefficient of friction is 0.4, how far will the truck-car.
slide?
c. Explain the change in momentum of the truck and the car relative to each other
(i. e. the truck experienced a greater change in momentum than the car because
...). Hint: there are only three choices, the truck experiences a greater change in
momentum, the car experiences a greater change in momentum or the car and
truck experience the same change in momentum.

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.