When the index of refraction of a transparent material varies with wavelength, the material exhibits
A) density variation.
B) polarization.
C) dispersion.
D) reflection.
E) total internal reflection.
C
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The current theories of gravity are ________ because they do not incorporate a proper description of matter on the smallest scale
Fill in the blank(s) with correct word
When a boat sails from fresh water to salt water, the boat will float
A) lower in the water. B) higher in the water. C) at the same water level.
Compared to clocks in a stationary reference frame, clocks in a moving reference frame run
A) slower. B) faster. C) at the same rate.
Impulse: Three cars, car X, car Y, and car Z, begin accelerating from rest at the same time. Car X is more massive than car Y, which is more massive than car Z. The net accelerating force exerted on each car is identical. After 10 seconds, which car has the most amount of momentum?
A. They all have the same amount of momentum. B. Car X C. Car Y D. Car Z