Index of Refraction: Light having a frequency in vacuum of 6.0 × 1014 Hz enters a liquid of refractive index 2.0. What is the frequency of the light in this liquid? (c = 3.0 × 108 m/s)
A. 12 × 1014 Hz
B. 6.0 × 1014 Hz
C. 3.0 × 1014 Hz
D. 1.5 × 1014 Hz
E. 2.0 × 1014 Hz
Answer: B
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Free Fall: An astronaut stands by the rim of a crater on the Moon, where the acceleration of gravity is 1.62 m/s2 and there is no air. To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the time is 6.3 s, what is the depth of the crater?
A. 10 m B. 14 m C. 26 m D. 32 m E. 38 m
Charge Q1 = 6.0 nC is at (0.30 m, 0), charge Q2 = -1.0 nC is at (0, 0.10 m), and charge Q3 = 5.0 nC is at (0, 0)
What are the magnitude and direction of the net electrostatic force on the 5.0-nC charge due to the other charges? (k = 1/4??0 = 8.99 × 109 N ? m2/C2) What will be an ideal response?
Three identical resistors are connected in series to a 12-V battery. What is the voltage across any one of the resistors?
A) 36 V B) 24 V C) 12 V D) 4 V E) zero
Rocks begin to deform when they are stressed. Near Earth's surface, when stress is severe, the rock
A) behaves plastically—it folds and flows. B) Is brittle—it breaks producing faults and fractures. C) has brittle deformation—it folds and flows. D) has plastic deformation—it faults and fractures.