How do scientists determine the age of the solar system?
A) radiometric dating of the oldest Earth rocks
B) radiometric dating of meteorites
C) radiometric dating of Moon rocks
D) Theoretical calculations tell us how long it has taken the planets to evolve to their present forms.
B
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According to Bell's nonlocality principle,
A) entangled particles exhibit correlations that are explainable only by real, instantaneous connections between them. B) the act of observation always disturbs the object being observed. C) a particle always has an irreducible uncertainty in its position or in its velocity or both. D) any small change at one point must eventually cause large changes at distant points. E) any two particles must always exert forces on each other no matter how far apart they are.
The intensity level is 65 dB at a distance 5.00 m from a barking dog. What would be a reasonable estimate for the intensity level if two identical dogs very close to each other were barking? You can ignore any interference effects
A) 65 dB B) 68 dB C) 130 dB D) 136 dB
What are the important relics of the quark epoch? Why?
What will be an ideal response?
In an AC circuit, the ratio of average current to maximum current is:
a. zero. c. 1.0. b. 0.707. d. 0.5.