Which of the following is most easily understood to be quantized?
A) the number of eggs in an egg carton
B) the amount of water in a glass
C) the volume of air in a balloon
D) the amount of time in an hour
E) none of the above
Answer: A
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A grand unified theory (GUT) refers to a type of theory intended to unify
A) the strong force with the electromagnetic and weak forces. B) gravity with the strong and weak forces. C) the electromagnetic and weak forces. D) all four forces together.
Two slits separated by 0.050 mm are illuminated with green light (l = 540 nm). How many bands of bright lines are there between the central maximum and the 12-cm position? (The distance between the double slits and the screen is 1.0 m.)
a. 1111 b. 111 c. 11 d. 1 e. 11111
How do we most accurately measure the distance to the Moon?
A. We measure the lunar period and use Kepler's Third Law. B. We measure its angular size and compare it to its actual diameter, which gives us its distance. C. We bounce a pulse of light off the lunar surface and measure how long the trip takes. D. We know how long it took Apollo astronauts to get there, and how fast the rocket traveled. E. All of these choices provide equally accurate measurements.
____________________ is the resistance of a gas to the flow of radiation
Fill in the blank(s) with correct word