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Author Question: An object placed 12 cm from a concave mirror produces a real image 8.0 cm from the mirror. If the ... (Read 100 times)

rosent76

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on: Jul 28, 2018
An object placed 12 cm from a concave mirror produces a real image 8.0 cm from the mirror. If the object is now moved to a new position 15.0 cm from the mirror, where is the new image located as measured from the mirror?
 a. 6.5 cm
  c. 7.1 cm
  b. 14.6 cm
  d. 3.0 cm

Question 2

At high noon, the Sun delivers 900 W to each square meter of a blacktop road. What is the equilibrium temperature of the asphalt, assuming its emissivity e = 1? (s = 5.67  10-8 W/m2K4) .
 a. 75C
  c. 91C
  b. 82C
  d. 99C


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billybob123

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

C

Answer to Question 2

B


rosent76

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

peter

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Reply 3 on: Yesterday
Excellent

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