In an AC series circuit, the voltage in the inductor differs in phase with the voltage in the capacitor by what angle?
a. zero
b. 45°
c. 90°
d. 180°
d
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A charge of 1.0 × 10-6 ?C is located inside a sphere, 1.25 cm from its center. What is the electric flux through the sphere due to this charge? (?0 = 8.85 × 10-12 C2/N • m2)
A) 0.11 N • m2/C B) 8.9 N • m2/C C) 0.028? N • m2/C D) It cannot be determined without knowing the radius of the sphere.
A rock is thrown from the edge of the top of a 100-ft tall building at some unknown angle above the horizontal. The rock strikes the ground a horizontal distance of 160 ft from the base of the building 5.0 s after being thrown. Assume that the ground is level and that the side of the building is vertical. Determine the speed with which the rock was thrown
a. 72 ft/s b. 77 ft/s c. 68 ft/s d. 82 ft/s e. 87 ft/s
A charged particle moves with its velocity perpendicular to a magnetic field. The field acts to change the particle's
A) mass. B) magnitude of momentum. C) velocity. D) energy. E) charge.
A balloon containing 2.0 m3 of hydrogen gas rises from a location at which the temperature is 22°C and the pressure is 101 kPa to a location where the temperature is -39°C and the pressure is 20 kPa
If the balloon is free to expand so that the pressure of the gas inside is equal to the ambient pressure, what is the new volume of the balloon? A) 4.0 m3 B) 6.0 m3 C) 8.0 m3 D) 10 m3 E) 12 m3