Suppose a solid sphere of mass M and radius R rolls without slipping down an inclined plane starting from rest. The angular velocity of the sphere at the bottom of the incline depends on
A)
the mass of the sphere.
B)
the radius of the sphere.
C)
both the mass and the radius of the sphere.
D)
neither the mass nor the radius of the sphere.
B
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A straight wire of length 70 cm carries a current of 50 A and makes an angle of 60° with a uniform magnetic field. If the force on the wire is 1.0 N what is the magnitude of 
?
A. 41 mT B. 33 mT C. 55 mT D. 87 mT E. 57 mT
Exhibit 12-1
The figure below shows a graph of angular velocity versus time for a woman bicycling around a circular track.
?
?
Use this exhibit to answer the following question(s).
Refer to Exhibit 12-1. What is her angular displacement (in rad) in the 16-minute period shown in the graph?
A. 0 B. 16? C. 32? D. 40? E. 64?
The wave that arises in experiments such as the double-slit experiment with electrons is best described as
A) a pressure wave. B) a heat wave. C) a matter wave. D) a wave of electric charge. E) an electromagnetic wave.
While the government cannot guarantee health and safety for each individual, its role is to provide for maximum health and safety for the community as a whole.
a. true b. false