This topic contains a solution. Click here to go to the answer

Author Question: You are traveling quickly along a freeway. Your car has kinetic energy. You suddenly skid to a stop ... (Read 37 times)

123654777

  • Hero Member
  • *****
  • Posts: 585
You are traveling quickly along a freeway. Your car has kinetic energy. You suddenly skid to a stop because of congestion in traffic. Where is the kinetic energy that your car once had?
  1.All of it goes into internal energy in the road.
  2.All of it goes into internal energy in the tires.
  3.Some of it goes into internal energy of the road and some into internal energy of the tires.
  4.Some of it goes into internal energy of the road, some to internal energy of the tires, some to other internal energy, and some is transferred away by mechanical waves.

Question 2

A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the next loading, the spring is compressed a distance d/2. How much faster does the second dart leave the gun compared with the first?
  1.two times as fast
  2.the same
  3.half as fast
  4.one fourth as fast



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emsimon14

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

4

Answer to Question 2

3



123654777

  • Hero Member
  • *****
  • Posts: 585
Both answers were spot on, thank you once again




 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

For a complete list of videos, visit our video library