In the diagram, a stationary source located at point S produces sound having a constant frequency of 512 Hz. Observer A, 50 m to the leftof S, hears a frequency of 512 Hz. Observer B, 100 m to the right of S, hears a frequency higher than 512 Hz. Which statement BESTdescribes the motion of the observers?A512 Hz50. m100. mO A Observer A is stationary and Observer B is moving toward Point S.O B. Observer A is moving away from Point S, and Observer B is stationary.C. Observer A is stationary, and Observer B is moving away from Point S.D. Observer A is moving toward Point S, and Observer B is stationary. A string is stretched under tension and secured at the endpoints so that it cannot move. A wave driver oscillates vertically and creates aseries of standing waves. The dark line of the string represents a snapshot of a string at an instant in time when the amplitude is at itsmaximum. All of the strings are identical and all experience the same tension. The number of nodes and antinodes in each wave patternare different. The length of the strings (L) and the amplitudes at the antinodes (A) are given in each figure.AA 12 cmL=25 cmA = 12 cmL= 28 cmC4= 24 cmL= 20 cmA= 36 cmL= 30 cmIdentify the order below that correctly lists the wave patterns in terms of increasing wavelength.O A. B < A < C < DO B C

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In the diagram, a stationary source located at point S produces sound having a constant frequency of 512 Hz. Observer A, 50 m to the left of S, hears a frequency of 512 Hz. Observer B, 100 m to the right of S, hears a frequency higher than 512 Hz. Which statement BEST describes the motion of the observers? 512 Hz 50. m 100. m A. Observer A is stationary and Observer B is moving toward Point S. B. Observer A is moving away from Point S, and Observer B is stationary. C. Observer A is stationary, and Observer B is moving away from Point S. D. Observer A is moving toward Point S, and Observer B is stationary.

In the diagram, a stationary source located at point S produces sound having a constant frequency of 512 Hz. Observer A, 50 m to the left of S, hears a frequency of 512 Hz. Observer B, 100 m to the right of S, hears a frequency higher than 512 Hz. Which statement BEST describes the motion of the observers? 512 Hz 50. m 100. m A. Observer A is stationary and Observer B is moving toward Point S. B. Observer A is moving away from Point S, and Observer B is stationary. C. Observer A is stationary, and Observer B is moving away from Point S. D. Observer A is moving toward Point S, and Observer B is stationary.