Author Question: A 2200-kg auto moving northward at 12.0 m/s runs into a 3800-kg truck which is also moving ... (Read 76 times)

Chloeellawright

  • Hero Member
  • *****
  • Posts: 588
A 2200-kg auto moving northward at 12.0 m/s runs into a 3800-kg truck which is also moving northward, but at 5.00 m/s.
 
  If the vehicles lock bumpers, how fast are they moving just after the collision?

Question 2

What is the meaning of the term critical mass in regard to nuclear fission?
 
  A) This is the mass of the critical elements in a reactor, i.e., the uranium or plutonium.
  B) This is the amount of mass needed to make a power reactor economically feasible.
  C) This is the amount of material that is just on the verge of becoming radioactive.
  D) This is the minimum amount of fissionable material required to sustain a chain reaction.



kescobar@64

  • Sr. Member
  • ****
  • Posts: 324
Answer to Question 1

7.57 m/s

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

For a complete list of videos, visit our video library