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Author Archives: Anonymous

Figure 1 (below): Mars’ apparent motion through Taurus. Imag…

Figure 1 (below): Mars’ apparent motion through Taurus. Image from Kuhn, Thomas S. The Copernican Revolution. Cambridge: Harvard University Press, 1977 (1957) Figure 1 shows the apparent motion of Mars through the sky over the course of several months. In two complete sentences, why does Mars exhibit this strange loop-the-loop behavior?  

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Rank the following types of light based on their wavelength:

Rank the following types of light based on their wavelength:

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Select all types of light that transmit (pass) through Earth…

Select all types of light that transmit (pass) through Earth’s atmosphere and reach the ground:

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[1type] telescopes use a lens to bend light and form an imag…

[1type] telescopes use a lens to bend light and form an image, while [2type] telescopes bounce light off of a mirror to form an image.

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Figure 2: An energy level diagram depicting two electron tra…

Figure 2: An energy level diagram depicting two electron transitions for Hydrogen. Which transition depicted in Figure 2 corresponds with absorption?

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According to your sketch in the previous question, at what t…

According to your sketch in the previous question, at what time will the third quarter Moon be directly overhead?

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Kepler’s Second Law. Because Earth’s orbit slightly elliptic…

Kepler’s Second Law. Because Earth’s orbit slightly elliptical, it’s sometimes a little closer to the Sun and sometimes a little farther away. This also means that it speeds up and slows down each year. It travels the fastest when it is

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In approximately one week the Moon phase will be New Moon. D…

In approximately one week the Moon phase will be New Moon. During this time, the tides experienced on Earth will be:

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Rank the following types of light based on their energies: 

Rank the following types of light based on their energies: 

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If Earth’s rotation axis were not tilted with respect to its…

If Earth’s rotation axis were not tilted with respect to its axis of revolution, then the difference felt season to season would be:

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