A plate carries a charge of -2.3 µC, while a rod carries a charge of 2.4 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?

Answer: buoyancy forceexplanation: in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.