The separation of white light into its component
colors is called
a) dispersion.
b) polarization.
c) diffraction.
d) refraction.
c
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Globular clusters are found in the Milky Way's
Indicate whether the statement is true or false.
The overall energy efficiency of a typical automobile is closest to
A) 60%. B) 2%. C) 10%. D) 40%. E) 90%.
A 5.0-kg object is suspended by a string from the ceiling of an elevator that is accelerating downward at a rate of 2.6 m/s2 . What is the tension in the string?
a. 49 N b. 36 N c. 62 N d. 13 N e. 52 N
A rock is sinking to the bottom of the lake. The buoyant force is greater at point
1) A. 2) B. 3) C. 4) equal at all levels. This follows from the fact that 5) pressure increases with depth. 6) the same weight of water is displaced at any depth. 7) the water is appreciably more compressed with increasing depth. 8) position B provides a moderate answer, between the extremes.