Physics, 04.12.2020 16:30 carinaorcutt

Which has a greater buoyant force on it, a 31.0-cm3cm3 piece of wood floating with part of its volume above water or a 31.0-cm3cm3 piece of submerged iron

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Answer from: MagicDragon4734

The submerge iron has a greater buoyant force on it

Explanation:

Buoyant force is regarded as the force which is exerted on an object when the object is partly or wholly immersed in a fluid. It can be regarded as that force that is responsible for floating of an object. Buoyant force is one as a result of the differences in pressure that is acting on opposite sides of an object when immersed in a static fluid.

According to Archimedes' principle which states that when a body is fully or partially immersed in fluid, the upward buoyant force that is exerted on that body is proportional to the weight of the fluid that is been displaced by the object

FB= -ρgv

Where FB= buoyant force

ρ= density of fluid

V= volume of fluid

g= acceleration due to gravity

NOTE: from this principle, the magnitude of the buoyant force is proportional to weight of the displaced fluid

✓Volume of both wood and iron=31.0 cm^3

✓the piece of the iron is submerged totally

✓the piece of wood is partially submerged

ANSWER:

The buoyant force that is exerted on the body depends on both the volume of the fluid displaced and the density, but we know that both piece of iron and the wood posses the same volume of 31.0 cm^3 and we also know that the piece of iron displaces more water compare to the wood , simply because the iron is totally submerged, Hence the piece of iron has a greater buoyant force on it.

Answer from: Quest

radiation

explanation:

heat is transmitted by radiation

Answer from: Quest

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

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Which has a greater buoyant force on it, a 31.0-cm3cm3 piece of wood floating with part of its volum...

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