Waves on a String: A 10-gram wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along the wire, its wavelength is 0.60 m,and its amplitude is 8.4 mm. How much time does it take for a crest of the transverse wave to travel the length of the wire?
A. 36 ms
B. 31 ms
C. 40 ms
D. 44 ms
E. 49 ms
Answer: A
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A) Each successive stage of fusion requires higher temperatures than the previous stages. B) As each stage ends, the core shrinks further. C) Each successive stage creates an element with a higher atomic weight. D) Each successive stage lasts for approximately the same amount of time.
What holds the electron to the nucleus of an atom?
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Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the shortest wavelength?
A.
B.
C.
D.
E.
A planet is detected via the Doppler technique. The shape of the periodic velocity pattern tells us
A) the planet's size. B) the planet's mass. C) the planet's density. D) the orbital period of the planet. E) the orbital eccentricity of the planet.