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Author Question: A simple pendulum, consisting of a mass m and a string of length L, swings upward, making an angle ... (Read 39 times)

PhilipSeeMore

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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

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

B


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