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Finger [1]
3 years ago
15

1) Choose the answer choice that BEST completes the following sentence.

Physics
2 answers:
Lena [83]3 years ago
5 0

1. one-Half

2. Apogee

3. Any object that revolves around another object

4. Venus's gravitation pull

dimulka [17.4K]3 years ago
3 0

Answer:

1) (d)

2 (a)

3 (d)

4 (d)

Explanation:

1) Like earth, sun also illuminates half of the moon 's surface at a time.

2) The point on the earth orbit which is closest to the earth is called perigee.

3) Any object that revolves around another object in space is called satellite.

4) Venus has very little effect on the formation of tide on the earth as it is far off from it.

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The Event Horizon Telescope needs a 22 micro-arcsecond resolution to view the event horizon regions around black holes. If the a
likoan [24]

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14869817.395 m

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\theta=22 microarcsecond

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From Rayleigh Criterion

\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{\theta}\\\Rightarrow D=1.22\frac{1.3\times 10^{-3}}{22\times 10^{-6}\frac{\pi}{180\times 3600}}\\\Rightarrow D=14869817.395\ m

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