Astronomers observe unobscured X-rays generated in active galactic nuclei
Indicate whether the statement is true or false
FALSE
Physics & Space Science
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What observations demonstrate the existence of an interstellar medium?
What will be an ideal response?
Physics & Space Science
Water is good for putting out fires because it has a very high latent heat of vaporization
Indicate whether the statement is true or false
Physics & Space Science
If the Sun and stars are supported by gas pressure, what supports a white dwarf?
What will be an ideal response?
Physics & Space Science
In 1987, the best refrigerator being sold used 515 kWh/yr and the average used 979 kWh/yr. How much money would have been saved on your electric bill between then and 2000 by buying the more efficient one?
What will be an ideal response?
Physics & Space Science