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 98 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?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Polaris system Polaris system
Disorders of or Associated with the Lymphatic System Cont Disorders of or Associated with the Lymphatic System Cont
Compression ratio is the ratio of the total cylinder volume (when the piston is at the bottom of ... Compression ratio is the ratio of the total cylinder volume (when the piston is at the bottom of ...
Gene editing using the CRISPR-Cas9 system. Gene editing using the CRISPR-Cas9 system.
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
A slice of cheese pizza has a caloric content of 150 Cal. If this energy could b A slice of cheese pizza has a caloric content of 150 Cal. If this energy could b
Video: Nervous pathway to the Neuromuscular (NMJ)

For a complete list of videos, visit our video library