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Author Question: Temperature variation of different parts of a person's body can be detected by analyzing the ... (Read 18 times)

nautica902

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on: Jul 28, 2018
Temperature variation of different parts of a person's body can be detected by analyzing the emission pattern of which type of electromagnetic radiation?
 a. microwave
  c. x-rays
  b. infrared
  d. ultraviolet

Question 2

While standing at a crosswalk, you hear a frequency of 540 Hz from an approaching police car. After the police car passes, its frequency is 480 Hz. What is the speed of the police car? (speed of sound = 340 m/s)
 a. 13.1 m/s
  c. 20.0 m/s
  b. 17.4 m/s
  d. 26.2 m/s


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Pswine

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

B

Answer to Question 2

C


nautica902

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Reply 2 on: Jul 28, 2018
Gracias!

Sarahjh

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Reply 3 on: Yesterday
Excellent

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