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3 years ago

What is the surface temperature of Sirius B and A, in kelvins?

Physics

1 answer:

Sindrei [870]3 years ago

3 0

Answer:

9,940 K

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The bright component of the binary is a blue-white star 25.4 times as luminous as the Sun. It has a radius 1.71 times that of the Sun and a surface temperature of 9,940 kelvins (K), which is more than 4,000 K higher than that of the Sun

Explanation:

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and $f_r=\mu N$

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Substitute into equation 1

v² = 0² + 2×9.81×9.7

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Hence the velocity of the driver when he hits the water = 13.795 m/s.

(b)

F = ma.................... Equation 2

Where F = force exerted on the diver, m = mass of the diver, a = acceleration of the diver below the water surface.

Also using

v² = u² + 2as ............ Equation 3

Note: At the point when the diver enters the water, u = 13.795 m/s, and at the point when the diver comes to a complete stop, v = 0 m/s

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3 years ago

What is the surface temperature of Sirius B and A, in kelvins?​

What is the surface temperature of Sirius B and A, in kelvins?