Quasars are isolated supermassive black holes, and not associated with galaxies
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following is an incorrect ordering of the planets' distances from the Sun, from nearest to furthest?
a. Mercury, Venus, Uranus, Neptune b. Earth, Mars, Jupiter, Saturn c. Venus, Mars, Jupiter, Neptune d. Earth, Venus, Jupiter, Uranus
The tension in each of two strings is adjusted so that both vibrate at exactly 819 Hz. The tension in one of the strings is then increased slightly. As a result, six beats per second are heard when both strings vibrate
What is the new frequency of the string that was tightened? A) 825 Hz B) 813 Hz C) 822 Hz D) 816 Hz
At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading?
a. -12.3°F b. -24.6°F c. -12.3°C d. -6.1°C e. -20°F
Astigmatism is due to too flat a cornea
Indicate whether the statement is true or false