Ships use sound wave to find the vertical distance to the seabed. A pulse of sound waves is sent out and the echoes are detected. A ship emits a pulse of waves lasting 0.50 s. the waves have a frequency of 3600 hz. how many complete wavelengths does the pulse contain?

1800

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3600

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7200

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18000

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Solution

The correct option is A 1800
In one second there are 3600 cycles (wavelengths)
In 0.5 seconds there must be 1800 cycles (wavelengths)
Hence option A is correct.

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Ships use sound wave to find the vertical distance to the seabed. A pulse of sound waves is sent out and the echoes are detected. A ship emits a pulse of waves lasting 0.50 s. the waves have a frequency of 3600 hz. how many complete wavelengths does the pulse contain?

The correct option is A 1800In one second there are 3600 cycles (wavelengths)In 0.5 seconds there must be 1800 cycles (wavelengths)Hence option A is correct.

The correct option is A 1800
In one second there are 3600 cycles (wavelengths)
In 0.5 seconds there must be 1800 cycles (wavelengths)
Hence option A is correct.