The bright blue stars of Orion's Belt are Population I, while our yellow Sun is population II
Indicate whether the statement is true or false
FALSE
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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
Three particles are placed in the xy plane. A 40-g particle is located at (3, 4) m, and a 50-g particle is positioned at (?2, ?6) m. Where must a 20-g particle be placed so that the center of mass of this three-particle system is located at the origin?
A. (?1, ?3) m B. (?1, 2) m C. (?1, 12) m D. (?1, 7) m E. (?1, 3) m
A constant net force acts on an object. Describe the motion of the object
A) constant non-zero velocity. B) constant non-zero acceleration. C) increasing acceleration. D) decreasing acceleration. E) zero acceleration.
If one doubles the tension in a violin string, the fundamental frequency of that string will be how many times the original frequency?
A) 4 B) 2 C) D) E) 23