What is the explanation for the pattern of granulation seen on the visible surface of the Sun?

a. The granules form the base of a circulation pattern that extends from the photosphere to the outer corona.
b. The granules are regions of nuclear energy generation in the Sun's photosphere.
c. Each granule contains a strong magnetic field, which compresses and heats the gas underneath it.
d. The granules are the tops of hot gas that have risen from the Sun's convective zone.


d

Physics & Space Science

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Time Dilation: A spaceship carrying a light clock moves at a speed of 0.960c relative to an observer on Earth. If the clock on the ship advances by 1.00 s as measured by the space travelers aboard the ship, how long did that advance take as measured by the observer on Earth?

A. 0.96 s B. 1.2 s C. 2.6 s D. 3.6 s E. 5.8 s

Physics & Space Science

A car coasts down a road into a valley and then coasts back up the next hill some distance

Where has its change in velocity been greatest? At the point at which it stops while going uphill? At the bottom of the hill? As it rolls back through the bottom to the other side? Explain.

Physics & Space Science

The index of refraction for red light in water is 1.331 and for blue light is 1.340 . If a ray of white light enters the water at an angle of incidence of 83.00°, what are the underwater angles of refraction for the blue and red components of the light?

Physics & Space Science

Cancer is low in Denver because

A. the radiation is lower B. the radiation is higher C. there are more gamma rays even though there are fewer betas D. We don't know why.

Physics & Space Science