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Author Question: When a certain simple pendulum is set swinging, its angular displacement as a function of time t ... (Read 91 times)

cookcarl

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on: Jul 29, 2018
When a certain simple pendulum is set swinging, its angular displacement  as a function of time t obeys the equation  = 8.5 cos(2.4 s-1t). How long is the pendulum?
 
  What will be an ideal response?

Question 2

The mass of Earth is 9.31 times the mass of Mars, and the radius of Earth is 1.88 times the radius of Mars. The escape speed for Mars is what percent of the escape speed for Earth?
 
  A) 222
  B) 22.5
  C) 44.9
  D) 66.2
  E) 20.2


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missalyssa26

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

1.7 m

Answer to Question 2

C


cookcarl

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Reply #2 on: Jul 29, 2018
Thank you!


missalyssa26

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Reply #3 on: Jul 29, 2018
Always glad to help...


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