Which of the following is the best definition of light energy?
a.
the energy that travels as longitudinal pressure waves.
b.
the form of energy that travels as electromagnetic waves.
c.
the form of energy associated with the random motion of atoms or molecules within a substance.
d.
energy that is stored in an object due to its position or configuration.

B. The form of energy that travels as longitudinal pressure waves.

Explanation:

B.

The form of energy that travels as electromagnetic waves.

Explanation:

Light energy, or electromagnetic field energy, is the form of energy that travels as electromagnetic waves. These waves do not need a medium through with to travel, so they are able to travel through the vacuum of outer space. Some types of light can be sensed by the human eye.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.