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

Author Question: The total mechanical energy of a system A) is equally divided between kinetic energy and ... (Read 80 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
on: Jul 29, 2018
The total mechanical energy of a system
 
  A)
 
  is equally divided between kinetic energy and potential energy.
  B)
 
  is either all kinetic energy or all potential energy, at any one instant.
  C)
 
  can never be negative.
  D)
 
  is constant, if only conservative forces act.
  E)
 
  is not uniquely determined for most naturally occurring systems.

Question 2

A copper penny has a mass of 3.0 g. A total of 4.0  1012 electrons are transferred from one neutral penny to another.
 
  If the electrostatic force of attraction between the pennies is equal to the weight of a penny, what is the separation between them? A)
 
  31 cm
  B)
 
  33 cm
  C)
 
  35 cm
  D)
 
  37 cm
  E)
 
  39 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

briezy

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

C


melina_rosy

  • Hero Member
  • *****
  • Posts: 531
Reply #2 on: Jul 29, 2018
TY


briezy

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Receptors in the autonomic nervous system: (a) sympathetic division; (b) parasympathetic division Receptors in the autonomic nervous system: (a) sympathetic division; (b) parasympathetic division
Free Energy Free Energy
Limbic system. Limbic system.
All cooling system hoses should be checked for wear or damage. All cooling system hoses should be checked for wear or damage.
An engine in good mechanical condition should produce 17 to 21 inches Hg of vacuum at idle at sea ... An engine in good mechanical condition should produce 17 to 21 inches Hg of vacuum at idle at sea ...
Life support system of a developing human Life support system of a developing human
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library