How many orders are in the spectra formed by a grating with 3000. lines/cm illuminated by red light of wavelength 600. nm?
A) 1
B) 5
C) 0
D) 4
E) 3
B
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A 2.00 kg mass is located at (4.00 m, 0.00 m, 0.00 m) and a 4.00 kg mass is located at (0.00 m, 3.00 m, 0.00 m). The center of gravity of the system of masses is
A. (1.33 m, 2.00 m, 0). B. (1.33 m, 1.00 m, 0). C. (1.50 m, 1.33 m, 0). D. (2.00 m, 1.33 m, 0). E. (1.33 m, 1.50 m, 0).
Exhibit 16-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
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Use this exhibit to answer the following question(s).
Refer to Exhibit 16-1. The point at which the object has zero velocity and negative acceleration is
A. A B. B C. C D. D E. E
A 1000-kg car is driving toward the north along a straight horizontal road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest uniformly in a distance of 200 m
What are the magnitude and direction of the net force applied to the car to bring it to rest? A) 1.00 N north B) 10.0 × 103 N south C) 1.00 × 103 N south D) 1.00 N south E) 100 N south
When U-238 emits an alpha particle, the resulting nucleus has
A) 90 protons. B) 91 protons. C) 92 protons. D) 93 protons. E) 94 protons.