Answer:
El Salvador
Explanation:
While the majority of the republics have both the Caribbean and a Pacific coast, Belize only has a Caribbean coast and El Salvador only has a Pacific coast. Central America comprises the countries south of Mexico and up to Panama.
The explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the Redshift- Doppler effect.
<h3>What is the Doppler effect?</h3>
The Doppler effect is the difference that occur between the frequency of a wave in relation to observer from the wave source.
The wavelength changes with change in the frequency.
<h3>How does the Doppler effect explain the redshift?</h3>
As an object moves away from Earth, the waves moves to the red end of the electromagnetic spectrum and becomes elongated. This results to the increase in wavelength.
Therefore, the explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the redshift-Doppler effect.
Read more on Doppler effect here:
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Answer:
Hope this helps!
Explanation:
You would use lantitude and longitude to help navigate if you ever lost a GPS or when marking things on a map. It can also be useful while sailing.
Both use it. Aviation uses it when they are up in the air and cannot see the ground below them. The air control tells them cordinaites they should fly to. Where-as, transportation also uses it when they need to find a specific thing, like trains finding a station.
GPS works through satiliete signals in space reflecting points on earth into your devices.
They are rather accurate depending on wether your device is working and if the satiliete is working. A form of GPS (Kind of) is sports. They use the same system to broad cast live.