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Title: An echo sounder operates by measuring the time required for ________. Post by: Earthy on Sep 1, 2015 An echo sounder operates by measuring the time required for ________.
A) a sound pulse travels from a ship to the seafloor and back B) a laser beam to travels from a ship to the seafloor and back C) a radar pulse to travel from a ship to the seafloor and back D) a radar pulse to travel from a satellite in orbit around Earth to the sea surface and back Title: Re: An echo sounder operates by measuring the time required for ________. Post by: Richy271 on Sep 2, 2015 Content hidden
Title: Re: An echo sounder operates by measuring the time required for ________. Post by: Earthy on Sep 7, 2015 Answered perfectly ;)
Vote with confidence people. Title: Re: An echo sounder operates by measuring the time required for ________. Post by: Richy271 on Sep 7, 2015 Thumbs UP are welcome :) :)
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