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3 years ago

What is the longest river shown on the europe physical map?

1 answer:

6 0

The longest river shown on the Europe physical map is the River Volga found in European Russia.

The Volga river flows 2,294 miles from the Valdai Hills through central Russia and eventually discharges into the Caspian sea.

The word Volga is derived from a Slavic word meaning moisture or wetness.

The Volga river's water shed (area of land drained by the river) is 532, 821 square miles in size.

The major tributaries of Volga River are Kama River and Oka River

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Answer: 1) Angular separation equals 0.0000031 degrees

2) Angular separation in arc -seconds equals 0.011156"

Explanation:

For 2 stars separated by a distance 'S' and at a distance 'D' from the earth the angular separation in radians is given

$\theta _{rad}=\frac{S}{D}$

Applying values we get

$\theta _{rad}=\frac{80\times 10^{6}}{150\times 9.46\times 10^{12}}\\\\\therefore \theta _{rad}=\frac{1}{18487500}radians$

Now we know that 'π' radians equals 180 degrees thus the above value in degrees shall be equal to

$\therefore \theta _{degrees}=\frac{1}{18487500\times \pi }\times 180^{o}=0.0000031^{o}$

The angular separation in arc- seconds is given by

$\theta ''=\theta ^{o}\times 3600\\\\\theta'' = 0.0000031\times 3600=0.011156"$

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3 years ago