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Author Question: When 50 g of a certain material at 100C is mixed with 100 g of water at 0C, the final temperature is ... (Read 73 times)

fbq8i

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When 50 g of a certain material at 100C is mixed with 100 g of water at 0C, the final temperature is 40C. What is the specific heat of the material? The specific heat of water is 1.00 kcal/kg  C.
 
  A) 0.33 kcal/kg  C
  B) 0.75 kcal/kg  C
  C) 1.3 kcal/kg  C
  D) 7.5 kcal/kg  C

Question 2

Light of wavelength 687 nm passes through a single slit that is 0.75 mm wide. At what distance from the slit should a screen be placed so that the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the pattern?
 
  A) 1.9 m B) 1.5 m C) 0.93 m D) 1.1 m E) 0.39 m


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mcarey591

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fbq8i

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Both answers were spot on, thank you once again




 

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