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Archy [21]
3 years ago
9

Based on the information below, both Polaris and Sirius are much hotter than the Sun. However, on Earth, we feel the heat from t

he Sun and not from Polaris or Sirius because?
A.Earth’s seasons are caused by rotation around the Sun.
B.a year on the Sun is less than a year on Polaris or Sirius.
C.Polaris and Sirius are farther north than the Sun.
D.Polaris and Sirius are farther away than the Sun.
Chemistry
2 answers:
Mars2501 [29]3 years ago
8 0

Answer:

<h2> <u>D</u><u>.</u><u> </u><u>Polaris</u><u> </u><u>and</u><u> </u><u>Sirius</u><u> </u><u>are</u><u> </u><u>farther</u><u> </u><u>away</u><u> </u><u>than</u><u> </u><u>the</u><u> </u><u>Sun</u><u>.</u></h2>

Explanation:

  • <em>T</em><em>h</em><em>a</em><em>t</em><em>'</em><em>s</em><em> </em><em>w</em><em>h</em><em>y</em><em> </em><em>w</em><em>e</em><em> </em><em>c</em><em>a</em><em>n</em><em> </em><em>f</em><em>e</em><em>e</em><em>l</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>h</em><em>e</em><em>a</em><em>t</em><em> </em><em>f</em><em>r</em><em>o</em><em>m</em><em> </em><em>t</em><em>h</em><em> </em><em>S</em><em>u</em><em>n</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>n</em><em>o</em><em>t</em><em> </em><em>f</em><em>r</em><em>o</em><em>m</em><em> </em><em>P</em><em>o</em><em>l</em><em>a</em><em>r</em><em>i</em><em>s</em><em> </em><em>o</em><em>r</em><em> </em><em>S</em><em>i</em><em>r</em><em>i</em><em>u</em><em>s</em><em>.</em>
azamat3 years ago
7 0

Answer:

  D.  Polaris and Sirius are farther away than the Sun.

Explanation:

The radiation intercepted by Earth is inversely proportional to the square of the distance from the source. Polaris and Sirius are substantially farther away than the sun.

Polaris, for example, is about 27 million times farther away, so even though it is 4000 times brighter, we receive on the order of 5×10^-12 as much radiation from that star as from the sun.

We feel less heat from stars other than the Sun because they are farther away.

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