Pls help velocity/speed hw 15 points a. What is the average speed of the object from 0 to 10 hrs?

b. What occurred from 10 to 12 hours?

c. Was the average speed from 0-10 hours (greater, less, or the same) than the average speed from 12-16 hours? _

The momentum of an isolated system is conserved a) only in inelastic collisions. b) only in elastic collisions. c) in both elastic and inelastic collisions

The mini-refrigerator fire was most likely caused by what type of wiring?

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?