Joaquin and Alton want to know about the motion of the hockey puck after the crashes. Why would the crash affect the hockey puck, and which crash would cause a greater change in motion for the hockey puck?

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

The mantle is made up of which structural zones?