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I live on a lake and swim quite often. When you go underwater and a boat goes by a 1/4 mile away, you can distinctly hear the prop and engine whirring. Also, the boat sounds much closer and louder than it does above water because sound travels better in water than in air. This is because it is more dense than air.
What else can I help you with?
U-Boat in World War 1 stay under water?
Yes the U-Boat can stay under water.
How does buoyancy affects a boat?
Buoyancy affects a boat by keeping it "on" the water, not "under" the water.
Can a boat motor tow in reverse?
No because the firt tendancy of the boat going in reverse is to dig the back end of the boat under water, witch causes the boat to go under water and sink.
Who will hear the sound of an approaching boat first this diver or his friend above the water?
The friend above the water will hear the sound of an approaching boat first because sound travels faster through water than through air.
What enables sound to travel from a boat to a submarine?
Sound waves propagating through the water do.
What do lifeguards do during a shark attack?
they jump into the water and save the swimmer usually by swimming or by boat depends how close or how far the attack is.
A fishing boat using sonar to locate fish is employing what?
A fishing boat using sonar to locate fish is employing reflection. The technique that uses sound propagation to detect objects under the water.
What if your boat capsizes but remains floating upside down.?
Stay with your boat, and climb out of the water if possible. A boat is easier for rescuers to see, than a single person in the water. Don't attempt to swim from the boat, unless you are a good swimmer, you are wearing a life-jacket, and the land is not too far away.
The best way to prevent a striking a swimmer with a moving boat propeller is to do what?
Always turn off engine when A swimmer is reboarding
The Best way to prevent striking a swimmer with a moving boat propeller is to do what?
Always turn off engine when A swimmer is reboarding
What is the best way to prevent striking a swimmer with a moving boat?
Always turn engine off when a swimmer is re-boarding
What does U-Boat mean?
U = Unter (in German) = under so is a boat that goes under (the water) namely a submarine
