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Author Question: Which of the following has the shortest wavelength, assuming that they all have the same speed? ... (Read 67 times)

swpotter12

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on: Jul 29, 2018
Which of the following has the shortest wavelength, assuming that they all have the same speed?
 
  A) electron
  B) water molecule
  C) baseball
  D) helium atom
  E) None of these objects have wavelengths of any kind.

Question 2

You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind at constant speed and you perceive the frequency as .
 
  You are relieved that he is in pursuit of a different driver when he continues past you, but now you perceive the frequency as What is the speed of the police car? The speed of sound in air is
  A) 40.1 m/s B) 41.7 m/s C) 39.2 m/s D) 30 m/s E) 38.4 m/s


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annierak

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


swpotter12

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Reply 2 on: Jul 29, 2018
Gracias!

sultana.d

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Reply 3 on: Yesterday
Excellent

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