This topic contains a solution. Click here to go to the answer

Author Question: Why does a sonic boom irritate people on the ground below a supersonic aircraft and not passengers ... (Read 95 times)

drink

  • Hero Member
  • *****
  • Posts: 554
Why does a sonic boom irritate people on the ground below a supersonic aircraft and not passengers inside the aircraft?
 
  What will be an ideal response?

Question 2

What is the Doppler effect, and how is it produced? Cite two examples.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Leostella20

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

Answer: People on the ground below encounter the aircraft's shock wave, whereas passengers inside do notbecause the shock wave produced by the aircraft is not incident upon the passengers inside. Consider the analogous case of a boat on a river. People on shore may be doused by the bow wave as the boat passes, but passengers inside the boat don't encounter the bow wave at all. Or a dolphin at a sea-world show may splash onlookers while not encountering the effects of the splash.

Answer to Question 2

Answer: The Doppler effect is the perceived change in frequency produced by relative motion between a receiver and the source of a wave. If a wave source approaches a receiver, waves encounter the receiver more often and a higher frequency is perceived. If a wave source recedes, waves encounter a receiver less often and a lower frequency is perceived. In the case of sound, when a siren from a fire engine or ambulance approaches you, its pitch is higher. When the vehicle passes, moving away, the pitch is lower. In the case of light, the spin of a star can be determined by noting that one edge has a slightly different color than the opposite edge. The edge spinning toward you will be slightly blue-shifted, while the edge spinning away from you is slightly red-shifted. So the edge turning toward you is bluish, and the edge turning away from you is redish.





 

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

For a complete list of videos, visit our video library