Definition: Submersion is a mathematical concept in fluid dynamics, involving a material or substance that sinks below its surface. It refers to the behavior of fluids and gases where they are displaced by another substance (usually liquid) until it is completely submerged. In simpler terms, if you have a sphere floating in water, when you pour water into the sphere, the water will sink down to the bottom of the sphere because it's not able to resist the buoyant force from the water. This phenomenon is known