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Author Question: How many decibels correspond to a sound intensity of 7.0 10-7 W/m2? A) 70 B) 58 C) 69 D) 75 ... (Read 201 times)

bobypop

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on: Jul 27, 2018
How many decibels correspond to a sound intensity of 7.0  10-7 W/m2?
 
  A) 70
  B) 58
  C) 69
  D) 75
  E) 63

Question 2

What is the rate of heat flow through a pane of glass that is 40.0 cm by 30.0 cm with a thickness of 4.00 mm when the outside temperature is -10.0C and the inside temperature is 25.0C?
 
  The thermal conductivity of glass is 0.105 W/(mK) and the specific heat of glass is 0.180 cal/(gC).
  A) 24.2 W
  B) 3.81 W
  C) 18.6 W
  D) 47.3 W
  E) 110 W


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Ksh22

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

E


bobypop

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Reply 2 on: Jul 27, 2018
Wow, this really help

laurnthompson

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Reply 3 on: Yesterday
Gracias!

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