Three solid, uniform, cylindrical flywheels, each of mass 65.0 kg and radius 1.47 m, rotate independently around a common axis through their centers
Two of the flywheels rotate in one direction at 8.94 rad/s, but the other one rotates in the opposite direction at 3.42 rad/s. Calculate the magnitude of the net angular momentum of the system.
A) 1020 kg ? m2/s
B) 1500 kg ? m2/s
C) 975 kg ? m2/s
D) 940 kg ? m2/s
A
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Fill in the blank(s) with the appropriate word(s).
Earth is farthest from the Sun in July and closest to the Sun in January. During which Northern Hemisphere season is Earth moving fastest in its orbit?
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A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is halfway across
If the tension in both halves of the wire at this point is what is the mass of the tightrope walker? Neglect the mass of the wire. A) 85 kg B) 43 kg C) 74 kg D) 91 kg
Consider a situation where two moving objects collide, stick to each other, and move off together. The energy stored in a pile driver is an example of gravitational potential energy
Indicate whether the statement is true or false