Why are so few molecules observed in visible light? Where are most observed, and why?
What will be an ideal response?
Few molecules, such as TiO, are durable enough to exist in the photospheres of the coolest stars and thus be visually detected. Most less-durable molecules can exist only at much colder temperatures, where they give off infrared, microwave, or even radio emissions from their rotational and vibrational transitions.
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Which space telescope is observing X-rays?
A. the Spitzer Space Telescope B. the Hubble Space Telescope (HST) C. the Chandra Observatory D. the Extreme Ultraviolet Explorer (EUVE)
Express an angle of 35.20 rad in degrees
What will be an ideal response?
Maria are light-colored mountainous lunar highlands
Indicate whether the statement is true or false
The amount of heat necessary to change the temperature of 1 kg of a substance 1°C is
a. 1 cal. b. the specific heat. c. the heat difference. d. 1 J.