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 13 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

mcabuhat

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Lioness in a burst of speed while hunting in the Serengeti Lioness in a burst of speed while hunting in the Serengeti
The correct statement about hormones-insulin and glucagon The correct statement about hormones-insulin and glucagon
If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ... If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
A tsunami (tidal wave) traveling across deep water can have a speed of 750 km/h k m / h and a ... A tsunami (tidal wave) traveling across deep water can have a speed of 750 km/h k m / h and a ...
Video: Attention Deficit Disorder (ADD)

For a complete list of videos, visit our video library