Einstein believed that the principle of relativity should apply to Maxwell's theory of electromagnetism. Which basic principle or law did this lead Einstein to propose?
A) length contraction
B) the law of inertia
C) the constancy of lightspeed
D) the relativity of time
E) E=mc2
C
Physics & Space Science
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The analytical procedure that bombards a sample with neutrons and measures the frequency of gamma rays emitted is called
a. the alpha scattering technique. b. carbon dating. c. neutron activation analysis. d. Geiger counting.
Physics & Space Science
Facts in the field of science
A) are absolute. B) are changeable. C) mean very little. D) are more important than theories.
Physics & Space Science
Which type of radiation can be observed well from Earth's surface?
A) Gamma ray B) X-ray C) Ultraviolet D) Visible E) Infrared
Physics & Space Science
The mass of the nucleus is closest to
A. 99% of that in the entire atom B. 1 % of that in the atom c. 10-5 of that in the atom D. 10-15 of that in the atom
Physics & Space Science