If you do an experiment on earth, and then do an identical experiment in a jet plane moving uniformly at a high speed, you get identical results from both experiments. This is an example of
a. time dilation
b. length contraction
c. the equivalence of mass and energy
d. the principle of relativity
e. none of the above
D
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What are the possible charges of a quark (not an antiquark)?
A) -e, 0, e B) -2/3 e, -1/3 e, +1/3 e, +2/3 e C) -2/3 e, +1/3 e D) -1/3 e, +2/3 e E) -1/3 e, +1/3 e
If a precipitation hardened alloy that is aged to peak strength is heated during processing to produce the part, the strength may be _________.
Fill in the blank(s) with the appropriate word(s).
Three particles are placed in the xy plane. A 40-g particle is located at (3, 4) m, and a 50-g particle is positioned at (?2, ?6) m. Where must a 20-g particle be placed so that the center of mass of this three-particle system is located at the origin?
a. (?1, ?3) m b. (?1, 2) m c. (?1, 12) m d. (?1, 7) m e. (?1, 3) m
Two closely spaced parallel glass plates are separated by 900 nm. What wavelength light source in the visible region (390 nm to 710 nm) will experience maximum transmission through the two plates?
a. 684 nm c. 500 nm b. 600 nm d. 429 nm