Who makes sure that planes fly in and out of airports safely and do not run into each other in the skies?

Physics

1 answer:

larisa [96]3 years ago

3 0

The correct answer to this is:

“Air traffic controllers”

These people are the personnel who is responsible for the safety, orderly, and swift flow of planes flying in and out of airports using the global air traffic control system. They are generally stationed in air traffic control centers and control towers on the airport ground. They monitor the position, speed, and elevation of aircraft in their designated airspace visually and by radar, and give directions to the pilots by radio.

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Crests of an ocean wave pass a pier every 10.0 s. if the waves are moving at 5.6 m/s, what is the wavelength of the ocean waves?

ExtremeBDS [4]

Every 10.0 seconds, a crest of the wave passes the pier. This means that the period of the wave is exactly 10.0 s:
$T=10.0 s$
which means that the frequency of the wave is
$f= \frac{1}{T}= \frac{1}{10.0 s}=0.1 Hz$

The wavelength of a wave is related to its frequency by the relationship
$\lambda= \frac{v}{f}$
where v is the speed of the wave.
In this problem, v=5.6 m/s; if we use the previous formula, we find the wavelength of the wave:
$\lambda= \frac{5.6 m/s}{0.1 Hz}=56 m$

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The best and most correct answer among the choices provided by your question is the third choice or letter C.

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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