Einstein's special relativity is based upon two postulates. The most radical of the two postulates states that
A. the classical velocity addition formula still holds at relativistic speeds.
B. there is no ether surrounding the Earth.
C. the speed of light is finite.
D. the speed of light is the same for all observers in all inertial reference frames.
Answer: D
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A) it is impossible to tell because frequency and wavelength are not related B) the lower-frequency wave has the longer wavelength because frequency and wavelength are inversely proportional to each other C) the two waves have the same wavelength because the wavelengths of all electromagnetic waves are the same D) the higher-frequency wave has the longer wavelength because frequency and wavelength are directly proportional to each other
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a. 800 mi. b. 239,000 mi. c. 93,000,000 mi. d. 2200 mi.
The actual age of rock layers and geologic events is referred to as ______________ geologic time
Fill in the blank(s) with correct word