Astronomy is pseudoscience
a. True
b. False
Indicate whether the statement is true or false
False
Physics & Space Science
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Telescopes observing in the far ultraviolet can work from high-flying aircraft
Indicate whether the statement is true or false
Physics & Space Science
A star (no matter what its mass) spends most of its life
A) as a main-sequence star. B) as a T-Tauri variable star. C) as a planetary nebula. D) as a protostar. E) as a red giant or supergiant.
Physics & Space Science
A person walks toward a plane mirror at 2.0 ft/s. She is approaching her image in the mirror at a speed of
A) 1.0 ft/s. B) 3.0 ft/s. C) 2.0 ft/s. D) 4.0 ft/s. E) 5.0 ft/s.
Physics & Space Science
Most of the elements found on Earth were created
A. in the first few million years of the Earth's existence B. within a star C. in the Big Bang D. in a supernova explosion
Physics & Space Science