A piece of metal has a weight of 6.5 N when it is in air and 3.0 N when it is submerged into water. What is the buoyant force on the piece of iron?

The buoyant force on the piece of iron is 3.5 newtons.

Explanation:

According to the Archimedes' Principle, the piece of metal experiments a buoyant force equal to the weight of the displaced fluid. By Newton's Laws, we have the following formula:

(1)

Where:

- Buoyant force on the piece of iron, in newtons.

- Weight of the piece of metal, in newtons.

- Weight of the fluid displaced by the piece of metal, in newtons.

If we know that and , then the buoyant force on the piece of iron is:

The buoyant force on the piece of iron is 3.5 newtons.

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explanation:

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the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.