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Author Question: Consider a very small hole in the bottom of a tank that is in diameter and filled with water to a ... (Read 96 times)

theo

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on: Jul 29, 2018
Consider a very small hole in the bottom of a tank that is in diameter and filled with water to a height of Find the speed at which the water exits the tank through the hole.
 
  A) 44.1 m/s B) 17.64 m/s C) 4.20 m/s D) 48.3 m/s

Question 2

A stopping potential of 0.50 V is required when a phototube is illuminated with monochromatic light of wavelength 590 nm. Monochromatic light of a different wavelength is now shown on the tube, and the stopping potential is measured to be 2.30 V.
 
  What is the wavelength of this new light? (c = 3.00  108 m/s, e = - 1.60  10-19 C, h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J) A) 320 nm
  B) 300 nm
  C) 340 nm
  D) 360 nm
  E) 410 nm


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nikmaaacs

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

C

Answer to Question 2

A


theo

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

yeungji

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Reply 3 on: Yesterday
Excellent

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