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False
Kelvin-Helmholtz contraction is a contraction of a star once it is formed and before it is hot enough to ignite its hydrogen. The contraction converts gravitational potential energy into heat, some of which is radiated, with the remainder used to raise the internal temperature of the star.
Muscle
Contraction of the rib cage causes an increase in internal lung pressure that results in the expiration of air from the lungs.
The pycnocline is the ocean layer with the greatest density gradient. Internal waves are often caused by currents, which are caused by differing densities. Also, any disturbance to the pycnocline (such as ships, storms, tides, etc.) can generate internal waves.
False
nuclear fusion and gravitational contraction. I'm cheating on my astronomy homework too :)
nuclear fusion and gravitational contraction
Kelvin-Helmholtz contraction is a contraction of a star once it is formed and before it is hot enough to ignite its hydrogen. The contraction converts gravitational potential energy into heat, some of which is radiated, with the remainder used to raise the internal temperature of the star.
internal intercostals
A contraction is a shortened version of the written form of a word, created by the omission of internal letters. Dr is a contraction of the word doctor.
Mammals are animals that can generate their own body heat through processes like metabolism and shivering. This ability helps mammals maintain a constant internal body temperature regardless of external conditions.
Which internal energy source produces heat by converting gravitational potential energy into thermal energy?
autonomic peace.love.faith
Yes.Yes.Yes.Yes.
Muscle
Under what internal conditions does air tend to flow into lungs?