The diagram shows the various positions of a child in motion on a swing. Somewhere in front of t...
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0The diagram shows the various positions of a child in motion on a swing. Somewhere in front of the child a stationary whistle is blowing.
At which position(s) will the child hear the lowest frequency for the sound from the whistle?
(A) At both \( A \) and \( D \).
(B) At \( C \) when moving toward \( B \).
(C) At \( B \) when moving toward \( A \).
(D) At \( C \) when moving toward \( D \).
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