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Author Question: When viewing your image in a hand-held mirror, if you move the mirror away at a speed v, the image ... (Read 177 times)

drink

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When viewing your image in a hand-held mirror, if you move the mirror away at a speed v, the image appears to:
 a. also move away at v.
  c. move away at 2v.
  b. move away at v/2.
  d. not move.

Question 2

A 3.00 g lead bullet is traveling at a speed of 300 m/s when it embeds in a wood post. If we assume that half of the resultant heat energy generated remains with the bullet, what is the increase in temperature of the embedded bullet? (specific heat of lead = 0.0305 kcal/kg C, 1 kcal = 4186 J)
 a. 113C
  c. 176C
  b. 137C
  d. 259C



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xMRAZ

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Answer to Question 1

C

Answer to Question 2

C




drink

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it


juliaf

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Reply 3 on: Yesterday
Gracias!

 

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