This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A truck weighs twice as much as a car, and is moving at twice the speed of the car. Which statement ... (Read 12 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

B


Charlie

  • Member
  • Posts: 640
Reply 2 on: Jul 27, 2018
Wow, this really help

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Protraction and Retraction Protraction–Moving a body part forward. Retraction–Moving a body part bac Protraction and Retraction Protraction–Moving a body part forward. Retraction–Moving a body part bac
A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ... A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ...
This Powertrain Control Module (PCM) is located under the hood on this Chevrolet pickup truck. This Powertrain Control Module (PCM) is located under the hood on this Chevrolet pickup truck.
A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ... A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ...
Escape Speed Problem Escape Speed Problem
Tesla cyber truck Tesla cyber truck
Video: Skin Cancer

For a complete list of videos, visit our video library