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Use "buoyancy" for any question where an object is suspended or submerged in a fluid. Buoyant force is the force that acts upward on a partially or completely submerged object.

3 votes

What is definition of weight?

Strictly speaking, weight is the force experienced by an object due to its presence in a gravitational field. In a uniform gravitational field (which the surface of the earth approximates), it is the …
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