« previous next »

Author Question: A simple pendulum, consisting of a mass m and a string of length L, swings upward, making an angle ... (Read 96 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jul 29, 2018
A simple pendulum, consisting of a mass m and a string of length L, swings upward, making an angle  with the vertical. The work done by the tension force is
 
  A) zero.
  B) mgL.
  C) mgL cos .
  D) mgL sin .
  E) mgL tan .

Question 2

If you are measuring the length of a room, the most appropriate SI unit is the
 
  A) kilometer.
  B) meter.
  C) centimeter.
  D) millimeter.
  E) micrometer.


Tabitha_2016

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

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

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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.

The nervous system is described as having two interconnected divisions: the central nervous system ( The nervous system is described as having two interconnected divisions: the central nervous system (
Use fingertips to apply friction to muscle attachments along inferior length of the clavicle. Use fingertips to apply friction to muscle attachments along inferior length of the clavicle.
Free energy diagrams for the simple reaction A ----> B Free energy diagrams for the simple reaction A ----> B
What is the length of the staircase? What is the length of the staircase?
Two complementary angles are drawn such that one angle is 10 degree more than seven times the ... Two complementary angles are drawn such that one angle is 10 degree more than seven times the ...
Pillow making monster kindergarten Pillow making monster kindergarten
Video: Interview with Person who has Panic Attacks

For a complete list of videos, visit our video library