A mass (M1 = 5.0 kg) is connected by a light cord to a mass (M2 = 4.0 kg) which slides on a smooth surface, as shown in the figure. The pulley (radius = 0.20 m) rotates about a frictionless axle. The acceleration of M2 is 3.5 m/s2. What is the rotational inertia of the pulley?
?
?
a.
0.29 kg?m2
b.
0.42 kg?m2
c.
0.20 kg?m2
d.
0.62 kg?m2
e.
0.60 kg?m2
c
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in an electric field. What is the magnitude of the electric field?
A. 
B. 
C. 14.9 N/C
D. 
E. there isn't enough information in the problem to solve this
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a. the ratio of the angular separation from the center of mass of each of the stars. b. the distance to the binary and its radial velocity. c. the semi major axis and period of the orbit. d. the radial velocities of the two stars. e. the time required for the small star to eclipse the larger star.
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A. 0.29 B. 0.46 C. 0.56 D. 0.66 E. 0.76
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