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mart [117]
3 years ago
8

What mechanisms do astronomers believe is responsible for making the Sun's outer atmosphere so much hotter than its photosphere?

Physics
1 answer:
IrinaVladis [17]3 years ago
5 0

Answer:

magneto hydrodynamic( MHD) waves

Explanation:

The surface of the Sun transmits magneto hydrodynamic( MHD) waves to its atmosphere. These waves carry energy from the sun's surface to its atmosphere ( Corona) and heat up the atmosphere to such extent that its temperature rises to many time than that of the surface temperature of the Sun.

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Please help<br>Will give the brainliest!​
Ronch [10]

Answer:

both answer is option C

Explanation:

tag me brainliest

7 0
3 years ago
A cannon ball is fired with an initial velocity of 75 m/s at an angle of 58 degree above the ground. What maximum height will it
KiRa [710]

Answer:

h = 206.4 m

range = 515.9 m

Explanation:

from the question we are given the following:

initial velocity (u) = 75 m/s

angle  above surface = 58 degrees

acceleration due to gravity (g) = 9.8 m/s^{2}

find the maximum height (h) and the horizontal distance

maximum height (h) = \frac{u^{2}sinθ^{2}  }{2g}

h =  \frac{75^{2}sin58^{2}  }{2 x 9.8}

h = 206.4 m              

the horizontal distance here is the range

range = \frac{u^{2}sin2θ }{g}

range = \frac{75^{2}sin(2 x 58) }{9.8}

range = 515.9 m

7 0
3 years ago
Two stones, one with twice the mass of the other, are thrown straight up and rise to the same height h. Compare their changes in
Lady bird [3.3K]
<h2>The gravitational potential energy is double for stone with twice the mass of other stone.</h2>

Explanation:

Let mass of stone 1 be m.

Mass of stone 2 is twice the mass of stone 1.

Mass of stone 2 = 2m

We know that

  Gravitational potential energy = Mass x acceleration due to gravity x Height

  PE = mgh

For stone 1 ,

                PE₁ = mgh

For stone 2 ,

                PE₂ = 2mgh = 2 PE₁

So the gravitational potential energy is double for stone with twice the mass of other stone.

               

4 0
3 years ago
Read 2 more answers
The surface temperature of a planet depends on both the distance of the planet from the Sun and on how the panet's atmosphere di
BaLLatris [955]

Answer:

Aphelion: 6404 W/m2

Perihelion: 14978 W/m2

Explanation:

The solar energy flux depends on the solar power output divided by the surface of a sphere with a radius equal to the distance to the Sun.

\Phi sol = \frac{Psol}{4 * \pi * d^2}

The distances we need are the aphelion and perihelion of Mercury.

Planetary orbits are ellipses. In an ellipse the eccentricity is related to linear eccentricity and the length of the semi major axis:

e = \frac{c}{a}

Where

e: eccentricity

c: linear eccentricity

a: semi major axis

The linear eccentricity is equal to the distance of the focus of the center of the ellipse.

c = a * c =

a = 0.39 AU = 5.83e10 m

c = 5.83e10e * 0.21 = 1.22e10 m

In planetary orbits the Sun is in one of the fucuses. With this we can calculate the prihelion and aphelion as:

Ap = a + c = 5.83e10 + 1.22e10 = 7.05e10 m

Pe = a - c = 5.83e10 - 1.22e10 = 4.61e10 m

And the solar energy fluxes will be:

\Phi Ap = \frac{4e26}{4 * \pi * 7.05e10^2} = 6404 W/m2

\Phi Pe = \frac{4e26}{4 * \pi * 4.61e10^2} = 14978 W/m2

4 0
3 years ago
Find the required answer to the following by substituting the numbers. (Bonus points for knowing the units). PLEASE ANSWER
Alex73 [517]

Answer:

a) F=ma

F=13.2×10

F=132

b) I=P/V

I=75/15

I=5

4 0
3 years ago
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