Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is
I
=
P
A
I
=
P
A
, where P is the power through an area A. The SI unit for I is W/m2. The intensity of a sound wave is related to its amplitude squared by the following relationship:
I
=
(
Δ
p
)
2
2
ρ
v
w
I think it is
rock metamorphosis
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Tissue Pain receptors that are sensitive to tissue damage or distortion of tissue.
Lichens and mosses are usually the pioneer plants that are found on barren lands. The two have the ability to survive in this kind of environment because of their minimal energy needs. When lichen and mosses died off, they are usually replaced by bigger plants because they have made the place suitable for the growth of larger plants. The dead parts of lichen and mosses decompose and turn into small particles of soil, this allow other plant species to grow in this location.
