Two speakers in a stereo emit identical pure tones. As you move around in front of the speakers, you hear the sound alternating between loud and zero. This occurs because of __________
Fill in the blank(s) with correct word
interference
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Energy and Mass: In a nuclear plant, 1017 J of energy is available from mass conversion. How much mass of fuel was lost to produce this energy? (c = 3.0 × 108 m/s)
A. 0.1 kg B. 1 kg C. 10 kg D. 100 kg
A non-uniform meter stick is found to balance on a knife edge at the 60-cm mark. Where is the center of gravity of the meter stick?
a. at the 40-cm mark b. at the 45-cm mark c. at the 50-cm mark d. at the 55-cm mark e. at a position not given
A violet-hot star emits radiation having about twice the peak frequency of radiation from a red-hot star. The surface temperature of the hotter star is about
A) half that of the cooler star. B) twice that of the cooler star. C) the same.
A particle is moving at constant velocity. Its position at t = 1.0 s is 3.0 m and its position at t = 4.0 s is 15.0 m. What is the slope of the position-time graph for this particle?
a. 0, since this is a constant velocity situation. b. 4.0 m/s c. 4.0 m/s2 d. 9.0 m/s e. 12 m/s2