Describe what happens to the energy of a wave if the frequency decreases.

It can be concluded from the above expression that the energy of the wave is directly proportional to the frequency of the wave.

Explanation:

If the frequency of the decreases then the energy of the wave decreases but the wavelength of the wave increases as the frequency and the wavelength of the wave has an inverse relationship.

a chair, a bed, and a toothbrush

explanation:

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;