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

Author Question: An object of mass m sits on a flat table. The Earth pulls on this object with force mg, which we ... (Read 177 times)

NClaborn

  • Hero Member
  • *****
  • Posts: 560
on: Jul 29, 2018
An object of mass m sits on a flat table. The Earth pulls on this object with force mg, which we will call the action force. What is the reaction force?
 
  A)
 
  The table pushing up on the object with force mg.
  B)
 
  The object pushing down on the table with force mg.
  C)
 
  The table pushing down on the floor with force mg.
  D)
 
  The object pulling upward on the Earth with force mg.
  E)
 
  The table pulling upward on the Earth with force mg.

Question 2

Sources are coherent if
 
  A)
 
  the distance to them is the same.
  B)
 
  they do not come from lasers.
  C)
 
  they have a zero phase difference.
  D)
 
  they have a constant phase difference.
  E)
 
  they only come from lasers.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

janeli1

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

D


NClaborn

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Jul 29, 2018
TY


janeli1

  • Sr. Member
  • ****
  • Posts: 330
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Possible Earth 5 billion years from now Possible Earth 5 billion years from now
Correct position when lifting a heavy object off the floor. Correct position when lifting a heavy object off the floor.
The cultural and racial–ethnic diversity of today’s work force has led to the need for diversity ... The cultural and racial–ethnic diversity of today’s work force has led to the need for diversity ...
Heaven or earth? Heaven or earth?
Earth’s Spheres Earth’s Spheres
Stretch anterior tissues by pressing down on shoulders. Stand at the head of the table. Place the ... Stretch anterior tissues by pressing down on shoulders. Stand at the head of the table. Place the ...
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library