Physics
Submerged objects can be located using
Radar
Sonar
Quasar
Pulsar
Sonar
Sonar (originally an acronym for Sound Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
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A. Electric field on current
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Mach number is used in connection with the speed of
A. sound
B. aircraft
C. spacecraft
D. ships
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