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Author Question: A flatbed truck is carrying a 20.0-kg crate down a sloping road inclined 15.0 below the horizontal. ... (Read 34 times)

ts19998

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on: Jul 29, 2018
A flatbed truck is carrying a 20.0-kg crate down a sloping road inclined 15.0 below the horizontal. The coefficient of static friction between the crate and the bed is 0.400.
 
  What is the maximum acceleration that the truck can have if the crate is to stay in place? A) 1.25 m/s2
  B) 0.625 m/s2
  C) 2.50 m/s2
  D) 3.16 m/s2
  E) 6.33 m/s2

Question 2

A person with normal eyesight uses a converging lens of focal length 10 cm. He holds the lens close to his eye to finish an engraving job. At what distance from the job he must hold the lens?
 
  A) -7.1 cm
  B) 7.1 cm
  C) -30 cm
  D) 30 cm
  E) 20 cm


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Yixagurpuldink

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

E

Answer to Question 2

B


ts19998

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  • Posts: 531
Reply 2 on: Jul 29, 2018
Excellent

diana chang

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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