From the best current data, we infer the universe will expand forever
Indicate whether the statement is true or false
TRUE
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Cosmetologists are the astronomers and physicists who do research in cosmology
a. True b. False Indicate whether the statement is true or false
A vocabulary in context exercise in which students match words to definitions describing elliptical planetary orbits, applying ideas from Kepler’s Laws of Planetary Motion
1. Earth is located at one _______ of the Moon's orbit. 2. According to Kepler's second law, Jupiter will be traveling most slowly around the Sun when at _______. 3. Earth orbits in the shape of a/an _______ around the Sun. 4. The mathematical form of Kepler's third law measures the period of years and the _______ in astronomical units (AU). 5. According to Kepler's second law, Pluto will be traveling fastest around the Sun when at _______. 6. The extent to which Mars' orbit differs from a perfect circle is called its ______.
Distant galaxies tend to be much bluer than those nearby
Indicate whether the statement is true or false
Changing the f-number of a camera by three stops by going from f/11 to f/32 will change the intensity of the light hitting the film by a factor of
a. 8. b. 4. c. 1/4. d. 1/8. e. 32.