As the index of refraction gets larger:
a. light bends less for a given angle of incidence.
b. the angle of incidence gets larger.
c. light bends more for a given angle of incidence.
d. the angle of incidence gets smaller.
e. it has no effect on how the light bends.
c
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The length of a certain wire is doubled and at the same time its radius is tripled. What is the change in the resistance of this wire?
A) It stays the same. B) It is reduced by a factor of 4.5. C) It is doubled. D) It is tripled. E) It is quadrupled.
A car traveling 20 m/s rounds an 80 m radius horizontal curve with the tires on the verge of slipping. How fast can this car round a second curve of radius 320 m?
(Assume the same coefficient of friction between the car's tires and each road surface.) A) 40 m/s B) 70 m/s C) 30 m/s D) 1.6 × m/s E) 80 m/s
Three small objects are positioned as follows: the 2.0-kg object at (0.0 m, 0.0 m), the 2.0-kg object at (2.0 m, 0.0 m), and the 4.0-kg object at (2.0 m, 1.0 m). Determine the coordinates of the center of mass of this system
A) (0.50 m, 1.5 m) B) (1.5 m, 0.50 m) C) (2.5 m, 1.5 m) D) (2.5 m, 0.50 m)
_____ is absorbed by water vapor in Earth's lower atmosphere
A) Long-wavelength infrared radiation B) Long-wavelength ultraviolet radiation C) Radio wave radiation D) X-ray radiation