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 48 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?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Diagrams showing the multiple energy shells and orbitals of a nitrogen atom Diagrams showing the multiple energy shells and orbitals of a nitrogen atom
Sexual dimorphism in body size and mating system. Sexual dimorphism in body size and mating system.
Circulatory System: Blood Vessels Circulatory System: Blood Vessels
The digestive system. The digestive system.
The human digestive system The human digestive system
Free Energy Rules: The Second Law in Open Systems Free Energy Rules: The Second Law in Open Systems
Video: Structure of a Ribosome

For a complete list of videos, visit our video library