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allsm [11]
3 years ago
14

What elements compose the stars and planets in the universe

Physics
1 answer:
Vilka [71]3 years ago
3 0

27% helium and 71% hydrogen

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We can study how galaxies evolve because ______. galaxies are transparent to visible light. we can watch as they interact in rea
Verizon [17]
Here is the answer that completes the statement above. We can study how galaxies evolve because THE FARTHER AWAY WE LOOK, THE FURTHER BACK IN TIME WE SEE. This means that the more we discover more about what's happening in the universe, the more we become curious to know how and when it began. Hope this helps.
6 0
3 years ago
What is the answer to 17 ‐ 12× ‐ 18 ‐ 5×
Nastasia [14]
The answer is -17x-1. You have to combine like terms.
7 0
4 years ago
In contact forces, _____.
lbvjy [14]
Answer: B

Explanation:
8 0
3 years ago
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A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 440 nm and an index of 1.595 for red li
seraphim [82]

Answer: 18.27°

Explanation:

Given

Index of refraction of blue light, n(b) = 1.64

Wavelength of blue light, λ(b) = 440 nm

Index of refraction of red light, n(r) = 1.595

Wavelength of red light, λ(r) = 670 nm

Angle of incident, θ = 30°

Angle of refraction of red light is

θ(r) = sin^-1 [(n(a)* sin θ) / n(r)], where n(a) = index of refraction of air = 1

So that,

θ(r) = sin^-1 [(1 * sin 30) / 1.595]

θ(r) = sin^-1 (0.5 / 1.595)

θ(r) = sin^-1 0.3135

θ(r) = 18.27°

4 0
3 years ago
Io experiences tidal heating primarily because __________.
Inga [223]

Answer:

the orbit of Io around Jupiter causes the tidal heating.

Explanation:

Io's elliptical orbit causes the tidal force to vary as it orbits Jupiter.

Because Jupiter is a very massive planet, it has a very large gravitational pull on its moons, so the side of Io facing the planet is experiencing a greater gravitational pull than the opposite side.  This causes a distortion in the shape of the Io, and a friction that causes the tidal heating.

This friction generates heat currents, which is what makes Io the place with the most volcanic activity in the solar system.

7 0
3 years ago
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