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WARRIOR [948]
1 year ago
15

If we transmitted radio signals to mercury when it was closest to earth and waited to hear the radar echo, how long would we wai

t?
Geography
1 answer:
Verizon [17]1 year ago
3 0

If we transmitted radio signals to mercury when it was closest to earth and waited to hear the radar echo, we have to wait 8.55 minutes.

Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz (Hz). ... Naturally occurring radio waves are emitted by lightning and astronomical objects.

Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves.

Learn about radio signal:

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Where is Greece located?
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Greece is located at the crossroads of Europe, Asia, and Africa. Situated on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, the Republic of Macedonia and Bulgaria to the north, and Turkey to the northeast. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, the Cretan Sea and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin and the 11th longest coastline in the world at 13,676 km (8,498 mi) in length, featuring a large number of islands, of which 227 are inhabited. Eighty percent of Greece is mountainous, with Mount Olympus being the highest peak at 2,918 metres (9,573 ft).
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3 years ago
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Why is farming thought of as the noblest profession among the senufo-tagba?.
svetlana [45]
Farming is considered the first and noblest profession. It is thought of as the profession of free people who have control over what they do in their lives and when they do it. Everyone does some farming during the rainy season (approximately late May through early October).
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2 years ago
The is different from other layers of the atmosphere because it doesn't have a mixture of gases; it has layers of single gases.
Gelneren [198K]

Answer:

<em>Thermosphere</em>

Explanation:

<em>The </em>thermosphere<em> is one of the different layer of the atmosphere from all the other layers of atmosphere.</em>

<em>As thermosphere does not consist of mix gases, and it only consist of one gas. It is on the up of mesosphere and it remains down of the exosphere. And ultraviolet radiation are also caused in this particular layer of the amosphere of the earth.</em>

4 0
3 years ago
Snow is white, and thus has a _______ albedo than bare ground. if global warming decreases snow cover, the resulting change in a
Anuta_ua [19.1K]
Answer:  higher;  increase .
<span>______________________________________________________________
     </span><span>Snow is white, and thus has a <u>  higher </u><u />  albedo than bare ground. if global warming decreases snow cover, the resulting change in albedo is likely to <u> increase </u><u /> further warming.
</span><span>________________________________________________________________
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to date, the majority of neandertal fossils have been found in: group of answer choices india northern africa southeast asia eur
andrey2020 [161]

To date, the majority of neandertal fossils have been found in Europe and western Asia.

There may have been little direct contact between neanderthals and modern humans over thousands of years. They might have contributed to the Neanderthals' impending extinction by preventing them from going back to the areas they liked best.

Around 40,000 years ago, all traces of Neanderthals vanished. The most recent Neanderthal fossils have been found at a few isolated locations in western Europe and the Near East, which was probably the last known location for this early human species.

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