« previous next »

Author Question: A rope is held from one end in such a way that the lower end just touches a table. The rope is then ... (Read 55 times)

waynest

  • Hero Member
  • *****
  • Posts: 553
on: Jul 29, 2018
A rope is held from one end in such a way that the lower end just touches a table. The rope is then lowered onto the table with constant velocity. The force that is needed to hold the upper end of the rope is
 
  A) equal to the weight of the portion of the rope that is not on the table.
  B) greater than the weight of the portion of the rope that is not on the table.
  C) less than the weight of the portion of the rope that is not on the table but not zero N.
  D) zero N.
  E) Cannot be determined without additional information.

Question 2

Sound intensity is defined as
 
  A) the loudness of a sound.
  B) the sound energy passing through a unit of area.
  C) the sound power per unit time.
  D) the sound power per unit volume.
  E) the sound energy passing through a unit of area per unit time.


alexanderhamilton

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Periodic Table Periodic Table
Dermatological changes with myxedema can occur behind the eyes or in the lower leg, as shown here. Dermatological changes with myxedema can occur behind the eyes or in the lower leg, as shown here.
a) Avoid bending your spine from working with the table too low. b) Avoid hiking your shoulders from ... a) Avoid bending your spine from working with the table too low. b) Avoid hiking your shoulders from ...
Bones of the upper and lower extremities. Bones of the upper and lower extremities.
Factors Affecting the Environmental Lapse Rate (ELR): Heating or Cooling of the Lower Atmosphere Factors Affecting the Environmental Lapse Rate (ELR): Heating or Cooling of the Lower Atmosphere
A. Open portable massage table on its side. B. Straighten out legs completely and check that leg ... A. Open portable massage table on its side. B. Straighten out legs completely and check that leg ...
Video: Anaphylaxis Animation

For a complete list of videos, visit our video library