Question

4. Define density
hanical energy?​

Answer 1

Answer:

U = E/V. Energy density is the amount of energy stored in a given system or region of space per unit volume. It may also be used for energy per unit mass, though the accurate term for this is specific energy.

Explanation:

Answer 2

Answer:

DENSITY:

Density of a substance is defined as mass per unit volume of the substance.

Formula:

$density = \frac{mass}{volume}$

here,the standard unit of density is kg per metre cube

$standard \: unit \: of \: density = \frac{kg}{metre {}^{3} }$

MECHANICAL ENERGY:

The energy possessed by an object by virtue of its position or state of motion is called mechanical energy.

formula:

[tex] KE =1/2mv²