2 years ago

What are the Van Allen Radiation Belts ?

1 answer:

6 0

Answer:

A Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetosphere. Earth has two such belts, and sometimes others may be temporarily created

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_____ in the uterus has to occur for a woman to confirm her suspicions that she is pregnant.

vlabodo [156]

Conception is the correct answer

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3 years ago

What is the wavelength (in nm) of radiation that has an energy content of 1.0x10^2 kJ/mol?

hammer [34]

<span>Energy = h nu, where nu is the frequency
h = 6.63 x 10^-34 J-s, Planck's constant
So nu = E/h = 1 x 10^5 J /h = 0.15 x 10^29 / s
nu lambda = c, the speed of light.
lambda = wavelength = c / nu =3 x 10^8 / 0.15 x 10^29 = 20 x 10^-21 m.

this can possibly be a gamma ray. Gamma rays are very penetrating. It's both matter and an energy. They are electromagnetic radiation that results from a radioactive material.

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3 years ago

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The sun is about 150 million km away from earth. The rays of sunlight that reach earth’s atmosphere are best represented as ____

tangare [24]

Five

The diagram that represents rays from the sun is given below.

The answer from the diagram is parallel lines.

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The formula for this is n_i * Sin(i) = n_r * sin(r)

n1 = 1.333 water

n2 = 1.309 ice

i (angle) = 40o

r (angle) = ?

Solution

1.333 * sin(40) = 1.309*sin(r)

1.333 * sin(40)/1.309 = sin(r)

0.6546 = sin(r)

sin-1(0.6546) = 40.88 degrees.

I guess my closest answer would be A. I'm not rounding at all and that's the answer I get.

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3 years ago

Block m1 of mass 2 m and velocity v0 is traveling to the right (+x) and makes an elastic head-on collision with block m2 of mass

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Ness awaits you sir, please be theoretical and positive eeeeeeeee

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4 years ago

You are out and about in the country and your father sees a rock that he really wants in the yard. Now you must get the very hea

kupik [55]

Answer:

the 8 feet long plank has the most mechanical advantage

Explanation:

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3 years ago