A capacitor, initially charged, and an inductor form an LC circuit. When the electric current in the circuit is equal to zero how much energy is stored on each device?
A)
Inductor: zero energy. Capacitor: zero energy
B)
Inductor: Half of the maximum energy. Capacitor: Half of the maximum energy
C)
Inductor: maximum energy. Capacitor: zero energy
D)
Inductor: zero energy. Capacitor: maximum energy
E)
Inductor: maximum energy. Capacitor: maximum energy
D
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Velocity Addition: In an "atom smasher," two particles collide head on at relativistic speeds. If the velocity of the first particle is 0.741c to the left, and the velocity of the second particle is 0.543c to the right (both as measured in the lab rest frame), how fast are the particles moving with respect to each other?
A. 0.916c B. 1.284c C. 0.934c D. 0.834c
A satellite is in orbit around a planet. The orbital radius is 34.0 km and the gravitational acceleration at that height is 2.3 m/s2. What is the satellite's orbital speed?
A) 280 m/s B) 8.8 m/s C) 28 m/s D) 88 m/s
Angular momentum plays an important role in star formation. Which of the following characteristics of a protostellar system is probably not strongly affected by the star's angular momentum?
A) the onset of core hydrogen fusion B) the existence of protostellar jets C) the strength of protostellar winds D) the formation of a protostellar disk
The concept of matter waves reflects the observation that particles such as electrons sometimes act like ______________
Fill in the blank(s) with correct word