What is so unique about the mirrors of telescopes such as the Keck Observatory,
ID: 107181 • Letter: W
Question
What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries and the soon-to-be-built Giant Magellan Telescope?
The mirrors are thin.
The mirrors are inexpensive.
The mirrors are segmented.
The mirrors are made of a newly designed metallic material.
The mirrors can fold up went not in use.
If an object goes from 10 m/s to 0 m/s, and the acceleration is -2 m/s 2, how long will it take for the object to stop? Hint: Acceleration (m/s 2) is a measure of the change of velocity (m/s) per unit of time (s).
a.The mirrors are thin.
b.The mirrors are inexpensive.
c.The mirrors are segmented.
d.The mirrors are made of a newly designed metallic material.
e.The mirrors can fold up went not in use.
Explanation / Answer
so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries and the soon-to-be-built Giant Magellan Telescope is
The mirrors are made of a newly designed metallic material.
d.The mirrors are made of a newly designed metallic material.
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