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Damm [24]
3 years ago
13

Explain what the ionosphere is and how it interacts with some radio waves.

Physics
1 answer:
kumpel [21]3 years ago
7 0

Answer:

Explained

Explanation:

  • Ionosphere is the outermost layer of the Earth's atmosphere,extending from 60 km to 1,000 km altitude.
  • It mainly consists of ionized gases by the solar radiation.
  • It is very important layer to Earth because it influences the radio propagation to distant places on Earth.
  • Being ionized it reflects high frequency(shortwave) radio waves to the sky as well as to the Earth by a technique called "skip" or "skywave" propagation for the communication over long distances.
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tankabanditka [31]
This question may require more information for an accurate answer. If the clouds are observed west of the city and they are moving in a westerly direction it means that the clouds are moving away. Precipitation refers to rainfall, sleet, hail or snow. Since no reference was made to the temperature, season or location of the city it could be rain or snow clouds. The clouds are moving away from the city so the possible answers could be b. or d. Furthermore, by dividing the distance by the speed one would get an answer of twenty four hours. So even if the clouds were moving towards the city it would take a day to reach and precipitation would not be likely in 24 hrs.
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Ariana is accelerating her car at a rate of 4.6 m/s2 for 10 seconds. Her starting velocity was 0 m/s.
Oksanka [162]

answer is 46 m/s

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20% of injury crashes in 2009 involve the reports of distracted driving. True or false
Ivan

The statement is true.

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2 years ago
A 2320 pound roller coaster starts from rest and is launched such that it creates a 110 ft high hill with a speed of 65 mph. The
Sergeu [11.5K]

Answer: E = 941738.537J

Explanation:

to begin,

given that the mass = 2320 pound = 1052.334 kg

Δh = 110 ft = 33.528 m

given that  distance (d) = 1283 ft = 391.058 m

also the speed (v) is 65 mph = 29.058 m/s

force (F) = 87 pounds = 386.995 N

from our knowledge in work energy theory;

E = Fd + 1/2mv² + mgh

E = (386.995 × 391.058) + (1/2×1052.334×29.058²) + (1052.334×9.81×33.528)

E = 151337.491 + 444278.2 + 346122.84

E = 941738.537J

i hope this helps, cheers.

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3 years ago
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4 0
2 years ago
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