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Author Question: A projectile is fired from ground level on a horizontal plain. If the initial speed of the ... (Read 204 times)

tiffannnnyyyyyy

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on: Jul 29, 2018
A projectile is fired from ground level on a horizontal plain. If the initial speed of the projectile is now doubled, and we neglect air resistance,
 
  A) its range will be increased by .
  B) its range will double.
  C) its range will be decreased by a factor of two.
  D) its range will quadruple.
  E) its range will decrease by a factor of four.

Question 2

When a sample of water at 0.0C is cooled to -36.0C and freezes in the process, 935,000 kJ of heat is liberated.
 
  What is the mass of this sample of water? For water LF = 334,000 J/kg, LV = 2.256  106 J/kg, and the specific heat of ice is 2050 J/kg  C.
  A) 2290 kg
  B) 1145 kg
  C) 2800 kg
  D) 12,700 kg


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Ksh22

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

D

Answer to Question 2

A


tiffannnnyyyyyy

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


Ksh22

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


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