« previous next »

Author Question: An object hits a wall and bounces back with half of its original speed. What is the ratio of the ... (Read 84 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 29, 2018
An object hits a wall and bounces back with half of its original speed. What is the ratio of the final kinetic energy to the initial kinetic energy of the object?
 
  A) 1/2
  B) 1/4
  C) 1/8
  D) 1/16

Question 2

If you weighed 800 newtons on Earth, how much would you weigh at 6000 km one Earth radius above the surface of Earth?
 
  A) 200 newtons
  B) 3200 newtons
  C) 800 newtons
  D) 1600 newtons
  E) 400 newtons


jlaineee

  • Sr. Member
  • ****
  • Posts: 380
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

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

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

The Plant Cell Wall The Plant Cell Wall
Back muscles Back muscles
Wall painting with giraffes, zebra, eland, and abstract shapes, San people, Inanke Cave, Matobo ... Wall painting with giraffes, zebra, eland, and abstract shapes, San people, Inanke Cave, Matobo ...
An IAC controls idle speed by controlling the amount of air that passes around the throttle plate. ... An IAC controls idle speed by controlling the amount of air that passes around the throttle plate. ...
Hot stones used to massage the back Hot stones used to massage the back
Half Leg of Lamb Half Leg of Lamb
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library