Explanation:
The X- rays are not emitted by the black hole itself but by the from hot gas orbiting around the black hole forming a disc known as accretion disk. When a black hole rips apart a star it attracts gases towards it. The pressure that is generated in the gas heats it up to millions of degrees thus emitting radiation among which x rays are also present which are detected by radio telescopes on the earth.
B - 5,680 J, 1,960 J
C - 3,720 J, 1,950 J
D - 1,960 J, 3,720 J
Answer:
C - 3,720 J, 1,950 J
Explanation:
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Epotential = M*G*H
Ep = (4)(9.8)(145-50)
Ep = 3729 J
Then
Ec = 1950 J
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The refractive index (n) of a material is defined as the ratio of the speed of light in a vacuum © to the speed of light in that material (v). Therefore, we can calculate the speed of light in material X for red light as v_red = c / n_red = c / 1.80. Similarly, the speed of light in material X for blue light can be calculated as v_blue = c / n_blue, where n_blue is the refractive index for blue light in material X.
We are given that blue light travels 5 × 10⁶ m/s slower than red light in this material. Therefore, we can write:
v_blue = v_red - 5 × 10⁶ m/s
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Substituting the expressions for v_red and v_blue, we get:
c / n_blue = c / 1.80 - 5 × 10⁶ m/s
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Solving for n_blue, we get:
n_blue = c / (c / 1.80 - 5 × 10⁶ m/s) ≈ 1.81
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Therefore, the refractive index for blue light in material X is approximately 1.81 123.
Air from the equator moves toward the poles slower than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator faster than the ground below it, so friction causes it to veer to the west.
B.
Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer west. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the east.
C.
Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the west.
D.
Air from the poles moves toward the equator faster than the ground below it, so friction causes the air to veer east. In contrast, air from the equator moves toward the poles slower than the ground below it, so friction causes it to veer to the west.
Answer:
The answer to your question is A. Hope this helped
b. bowling ball
c. pencil
d. toothpick
B. Count the number of protons
C. Add the number of protons and neutrons
D. count the number of electrons