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Author Question: A person makes ice tea by adding ice to 1.8 kg of hot tea, initially at 80C. How many kilograms of ... (Read 53 times)

rayancarla1

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on: Jul 29, 2018
A person makes ice tea by adding ice to 1.8 kg of hot tea, initially at 80C. How many kilograms of ice, initially at 0C, are required to bring the mixture to 10C?
 
  A)
 
  1.0 kg
 
  B)
 
  1.2 kg
 
  C)
 
  1.4 kg
 
  D)
 
  1.5 kg
 
  E)
 
  1.7 kg

Question 2

A uniform meter stick is pivoted at the 75-cm mark and hangs vertically. If it is displaced from equilibrium by a small amount and then released, what is the period of the resulting oscillations?
 
  A)
 
  2.01 s
 
  B)
 
  1.26 s
 
  C)
 
  1.53 s
 
  D)
 
  1.00 s
 
  E)
 
  1.74 s


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lou

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

C

Answer to Question 2

C


rayancarla1

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


lou

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


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