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

Author Question: A truck weighs twice as much as a car, and is moving at twice the speed of the car. Which statement ... (Read 45 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
A truck weighs twice as much as a car, and is moving at twice the speed of the car. Which statement is true about the truck's kinetic energy (K) compared to that of the car?
 
  A) The truck has 4 times the K of the car.
  B) All that can be said is that the truck has more K.
  C) The truck has twice the K of the car.
  D) The truck has 8 times the K of the car.
  E) The truck has times the K of the car.

Question 2

The Cambrian Explosion began approximately
 
  A) 2.1 billion years ago
  B) 542 million years ago
  C) 1.2 billion years ago
  D) 65 million years ago



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tonyam972

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

D

Answer to Question 2

B




Charlie

  • Member
  • Posts: 640
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review


brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
Gracias!

 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

For a complete list of videos, visit our video library