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Author Question: An object, located 90 cm from a concave lens, forms an image 30 cm from the lens on the same side as ... (Read 123 times)

madam-professor

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on: Jul 28, 2018
An object, located 90 cm from a concave lens, forms an image 30 cm from the lens on the same side as the object. What is the focal length of the lens?
 a. -150 cm
  c. -36 cm
  b. -45 cm
  d. -180 cm

Question 2

A 4.00-L container holds half a mole of an ideal gas at a pressure of 18.5 atm. What is the gas temperature? (R = 0.0821 L  atm/mol  K)
 a. 1800 K
  c. 901 K
  b. 1190 K
  d. 450 K


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lorealeza

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

A


madam-professor

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Reply 2 on: Jul 28, 2018
Wow, this really help

irishcancer18

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Reply 3 on: Yesterday
Gracias!

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