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kogti [31]
3 years ago
9

Dr. james van allen and his group of united states scientists discovered a set of ___________. magnetic equators planets magneti

c lines radiation belts
Physics
2 answers:
Blizzard [7]3 years ago
8 0

Answer: Radiation belts

Explanation :

Dr. James Van Allen was an American space scientist. Dr. James Van Allen and his group of united states scientists discovered a set of radiation belts. These belts are also known as Van Allen belts.

These belts are invented in the US when the first US satellite had been launched in 1958.

So, the correct option is (d) " radiation belts ".

Fofino [41]3 years ago
3 0

RADIATION BELTS....... I think but it should be radiation belt

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I believe it would be Direction B

Explanation:

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What feature best distinguishes one form of electromagnetic energy from another?
anastassius [24]

The family of electromagnetic waves ranges from the Long Radio waves to the gama rays.

All of that contain electromagnetic energy and move at the speed of light.

But what distinguish one from another is their wavelengh.

Or, if you like, its counterpart: their frequency. (as can be seen in the equation c = λ . f   where c is the speed of light, λ is the wavelengh and f is the frequency).

The shorter the wavelengh (the greater the frequency) more powerful (more energy it contains) is the electromagnetic wave.

From all the different kinds of electromagnetic waves of the spectrum, the less powerful (less energetic) are the Long Radio waves (λ in metres) and the more powerful ones are the gama rays (λ in 10^{-12} m).

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bezimeni [28]

The resultant of the given forces is; 6√2 N

<h3>How to find the resultant of forces</h3>

We are given the forces as;

10 N along the x-axis which is +10 N in the x-direction

6 N along the y-axis which is +6N in the y-direction

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Resultant force in the y-direction is; 6N

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Read more about finding resultant of a force at; brainly.com/question/14626208

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Answer:

When you blow into a tuba the air vibrates very slowly.​

Explanation:

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Due to absence of resonance in it , it produces music of lowest pitch , So when one blows into it the air column of the instrument vibrates very slowly producing low pitched sound.

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