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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 98 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
Thanks for the timely response, appreciate it

parker125

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Reply 3 on: Yesterday
Excellent

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