Which of the following are not relativistically invariant quantities?
a. the speed of light, c b. time
c. mass d. energy
b, d
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One observation that supported an Earth-centered solar system is ________.
A. the shape of Earth's shadow on the Moon B. the phases of the Moon C. retrograde motion D. the phases of Venus E. the lack of parallax in the stars
In the context of life in the universe, which of the following discoveries of astronomy suggests that extraterrestrial life may be constructed in a similar fashion to life on Earth?
A) the universe is very large B) the universe is very old C) the laws of physics are the same everywhere D) the chemical elements that make up life on Earth are common
A temperature change of 20 C° corresponds to a Fahrenheit temperature change of
A) 68 F°. B) 11 F°. C) 36 F°. D) 18 F°.
Halo stars are all Population II objects
Indicate whether the statement is true or false