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Underwater objects are usually tracked by means of the sounds given off by an object. For a submarine, sound is generated largely by its propellers as they churn through the water. However, the engines and some other parts also generate noise. These noises are detected by a submarine's sonar (sound detection and ranging equipment).
Objects can also be located by reflected sound waves, known as "active sonar". A "ping" or sound wave is generated into the water. Any differences in the returning sound indicates the location of an object or structure underwater. This technique can also be used to map the ocean floor.
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The reason submarines can detect other underwater objects is largely due to which?
Submarines have sonars.
The reason submarines can detect other underwater objects is largely due to?
Sonar. Active and passive
The reason submarines can detect other underwater objects is largely due to which what?
sound wavers are affected by propellers
What is the use of sonar?
SOund Navigation And Ranging = SONAR Sound is used underwater to bounce off objects. The reflections back can be measured (by electronics) to find our where they are and how far away. Used by submarines, to navigate round obstacles underwater and detect other vessels.
When is it echo considered as useful?
Echo is caused due to reflection of sound and it has major applications in SONAR, which is used by submarines or planes to detect other objects
What are four uses for sonar?
Navigation and mapping underwater terrain, such as in oceanography or hydrographic surveying. Detecting and tracking underwater objects, such as submarines or fish, for military and commercial purposes. Locating shipwrecks and other underwater artifacts in maritime archaeology. Monitoring underwater wildlife populations and behavior in marine biology and conservation efforts.
How does the military use sonar?
The military uses sonar technology for various purposes such as detecting submarines, underwater mines, and other objects in the water. Sonar systems emit sound waves that bounce off objects underwater, allowing the military to gather information on the environment and potential threats beneath the surface. Sonar is also used for navigation and communication underwater.
What are three uses for sonar?
Navigation: Sonar is commonly used in navigating ships and submarines by detecting underwater objects, reefs, and other potential hazards. Fisheries: Sonar is used in fisheries to detect schools of fish, helping fishermen to locate and catch their target species more effectively. Research: Sonar is used in research to study marine life, map the ocean floor, and investigate underwater habitats and geology.
How can you study aerodynamics underwater?
One way to study aerodynamics underwater is to analyze the flow of water around objects using techniques such as computational fluid dynamics (CFD) simulations or physical modeling in water tunnels. Researchers can study the forces acting on underwater objects, drag and lift coefficients, and overall hydrodynamics to understand how objects move and perform submerged in water. These studies can help improve designs of underwater vehicles, submarines, or other structures that interact with water.
Name 2 sensory organs that can detect stimuli from distant objects?
The eyes can detect visual stimuli from distant objects while the ears can detect auditory stimuli from distant objects.
What did the us use before sonar?
Before sonar, the US used various acoustic detection methods, such as hydrophones and listening devices, to detect underwater objects and submarines. These methods relied on the amplification and interpretation of sound waves in water. Additionally, the US Navy also used other methods like visual observation and radar for above-water detection.
What is a torpedo?
A torpedo is a self-propelled underwater weapon with an explosive warhead. It can be launched by aircraft, ship, or submarine, against surface vessels or submarines. Torpedoes use monopropellants (e.g., Otto Fuel) as engine fuel, which has its own oxidizer, since there isn't any oxygen to sustain a combustion engine underwater otherwise.
