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nata0808 [166]
3 years ago
12

Astronomers want to make maps of the sky showing sources of X-rays or gamma rays. Explain why those X-rays and gamma rays must b

e observed from above Earth’s atmosphere.
Geography
1 answer:
natta225 [31]3 years ago
4 0

Answer:

Astronomers place telescopes above to observe radiation from those parts of the electromagnetic spectrum for which the atmosphere would normally absorb or significantly scatter that radiation. This includes UV, X-ray, gamma ray, and infrared.

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A circle with center P is shown. RS and ST are tangent to Circle P. What Is the degree measure of angle RST
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Answer:

\angle RST =110

Explanation:

Given

\angle RPT = 70

See attachment

Required

Find \angle RST

To do this, we make use of the following theorem

\angle RST + \angle RPT = 180 --- angle at the center and angle between two tangents add up to 180 (i.e. they are supplementary angles)

So, we have:

\angle RST + 70 = 180

Collect like terms

\angle RST =- 70 + 180

\angle RST =110

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