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Author Question: Which of the following waves has the highest frequency? A) visible B) ultraviolet C) sound D) ... (Read 140 times)

sheilaspns

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on: Jul 29, 2018
Which of the following waves has the highest frequency?
 
  A) visible B) ultraviolet C) sound D) infrared E) radio

Question 2

Jet planes operate by
 
  A) rocket drive i.e., ejecting heated rocket fuel rapidly out the back end of the engine.
  B) ejecting ions out the back end of the engine.
  C) sucking in air, heating it , and allowing it to expand out the back end of the engine.
  D) sucking in air and blowing it rapidly out the back of the engine by means of propeller blades inside the engine.
  E) magic.


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Animal_Goddess

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

B

Answer to Question 2

C


sheilaspns

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Reply #2 on: Jul 29, 2018
Thank you!


Animal_Goddess

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Reply #3 on: Jul 29, 2018
Always glad to help...


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