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Author Question: A resistance heater is rated at 1200 W when operating at 110 V dc. What current will it draw? A) ... (Read 53 times)

sammy

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A resistance heater is rated at 1200 W when operating at 110 V dc. What current will it draw?
 
  A) 0.090 A B) 1.0 A C) 12 A D) 11 A

Question 2

A sealed container holds 0.020 moles of ideal nitrogen (N2 ) gas, at a pressure of 1.5 atm and a temperature of 290 K.
 
  The atomic mass of nitrogen is 14.0 g/mol. How many molecules of nitrogen are in the container? (R = 8.31 J/mol  K, 1 atm = 101 kPa)
  A) 1.5  1021 mol
  B) 3.0  1021 mol
  C) 6.0  1021 mol
  D) 1.2  1022 mol
  E) 2.4  1022 mol



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kusterl

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Answer to Question 1

D

Answer to Question 2

D




sammy

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Reply 2 on: Jul 29, 2018
Gracias!


juliaf

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Reply 3 on: Yesterday
Excellent

 

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