# Physics

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A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker move?
(b) With what frequency do the marker oscillate?
(c) If the frequency of the source is changed to 4.5 Hz, what will happen to: (i) the speed of the wave?
(ii) the frequency of the marker's oscillations?
(d) If the amplitude of the source is changed to 1.6 cm, what will happen to:
(i) the speed of the wave?
(ii) the frequency of the marker's oscillations?

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