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Author Question: A catapult is tested by Roman legionnaires. They tabulate the results in a papyrus and 2000 years ... (Read 82 times)

rachel9

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on: Jul 29, 2018
A catapult is tested by Roman legionnaires. They tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): Range = 0.20 km; angle of launch = /4; landing height = launch height.
 
  What is the initial velocity of launch of the boulders if air resistance is negligible? A) 44 m/s
  B) 1.4 m/s
  C) 22 m/s
  D) 0.69 m/s

Question 2

A 2.0 F capacitor is charged to 12. V and then discharged through 4  106 . How long will it take for the voltage across the capacitor to drop to 3.0 V?
 
  What will be an ideal response?


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snackralk

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

A

Answer to Question 2

11.1 s


rachel9

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


snackralk

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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