When water fills a submarine's flotation tanks, the overall density of the submarine does what?
(A) Decreases
(B) Stays the same
(C) Increases
(D) Reduces the boyant force
please gave you the answer that is wanted. However Naval Architects sometimes use what we call the "lost buoyancy" method which is D. you can do hydrostatics problems either way, "added weight" or "lost buoyancy".
The density will go up.
(D) Reduces the boyant force. Well, it's like when you eat too many tacos and try to float in a pool. Adding water to the tanks decreases the overall density of the submarine, thus reducing the buoyant force. So, just like you sinking in the pool, the submarine would sink too. Taco overload, submarine edition!
When water fills a submarine's flotation tanks, the overall density of the submarine decreases. This is because the additional volume of water added to the tanks decreases the average density of the submarine.
To understand what happens to the overall density of a submarine when water fills its flotation tanks, we need to consider the concept of density and buoyancy.
Density is the measure of mass per unit volume. It determines whether an object floats or sinks in a fluid. If the density of an object is less than the density of the fluid it is submerged in, it will float.
Buoyancy is the upward force exerted on an object when it is submerged in a fluid. It is equal to the weight of the fluid displaced by the object.
When water fills a submarine's flotation tanks, it effectively increases the mass of the submarine. Since density is determined by mass divided by volume, the overall density of the submarine will increase. This means that the correct answer to the question is (C) Increases.
To further illustrate this, consider the following steps to calculate the density of the submarine:
1. Determine the mass of the submarine both before and after the flotation tanks are filled with water.
2. Measure the volume of the submarine or estimate it based on its dimensions.
3. Divide the mass of the submarine by its volume to calculate its density.
By comparing the density values before and after the flotation tanks are filled, you will see that the density increases when water fills the tanks.