What is the average power dissipation in an RLC series circuit with R = 10 ?, L = 0.1 H, C = 10 ?F when driven at resonance by a 100 V rms source?
a. 100 W
b. 500 W
c. 1000 W
d. 2 kW
e. 700 W
c
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Imagine we've discovered a planet orbiting another star at an average distance of 1 AU with an orbital period of 6 months. The planet has a moon that orbits the planet at the same distance as our Moon, but it takes 2 months to complete an orbit. What can we infer about this planet?
A) It is more massive than Earth. B) It is less massive than Earth. C) It has the same mass as Earth. D) We cannot answer the question without knowing the mass of the star. E) We cannot answer the question without knowing the mass of the moon.
Transverse waves y1 = A1 sin(k1x??1t) and y2 = A2 sin(k2x??2t), with A2>A1, start at opposite ends of a long rope when t = 0. The magnitude of the maximum displacement, y, of the rope at any point is
A.
B.
C.
D.
.E.
.A neutron can be described as all of the following except:
Suppose the lowest band in a certain crystal is completely filled, but the gap between that band and the next higher one is 0.53 eV. What type of material is this?
A. A conductor B. An insulator C. A semiconductor