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ANEK [815]
3 years ago
9

A block with a volume of 12cm has a density of 3cm. The block is cut into two pieces. One piece has a volume of 8cm, and the oth

er piece has a volume of 4 cm. What are the densities of the two?
Physics
1 answer:
professor190 [17]3 years ago
3 0

Answer:

Density does not change when you divide the cube, due to the principle of mass conservation. The density given in this case by 3 \frac{g}{cm^{3}}, will remain the same.

The only way for it to change, will be if you compressed the block, so now the same mass will be compressed in less volume, or you add heat to the system.

Explanation:

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<h3>Electric potential energy</h3>

The configuration of a certain set of point charges within a given system is connected with the potential energy (measured in joules) known as electric potential energy, which is a product of conservative Coulomb forces. Two crucial factors—its inherent electric charge and its position in relation to other electrically charged objects—can determine whether an object has electric potential energy.

In systems with time-varying electric fields, the potential energy is referred to as "electric potential energy," but in systems with time-invariant electric fields, the potential energy is referred to as "electrostatic potential energy."

A tiny sphere carrying a charge of 6. 5 µc sits in an electric field, at a point where the electric potential is 240 v. what is the sphere’s potential energy?

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