Explain how a photon is generated in the core of the Sun and how it is transported out from the Sun
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Photons in the core are gamma rays. Each time a gamma ray encounters electrons or nuclei it is deflected in a random direction, and slowly drifts outward toward the surface while being converted into several photons of lower energy. The inner parts of the Sun where this net outward motion of energy in the form of radiation occurs is called the radiative zone. Photons eventually reach the outer layers of the Sun which is not very transparent to radiation. Here the energy goes into convection, and this region is known as the convective zone. Energy is carried outward as circulating gas, not as photons. When the energy finally reaches the photosphere, after perhaps millions of years, it is radiated into space as photons of visible light.
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Energy Conservation With Nonconservative Forces: A 7.5-kg otter slides down a hill, starting from rest at the top. The sloping surface of the hill is 8.8 m long, and the top is 6.5 m above the base. If the speed of the otter at the bottom of the hill is 9.2 m/s, how much energy was lost to nonconservative forces on the hill?
Fill in the blank(s) with the appropriate word(s).
Describe two observational tests that support general relativity
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The Miller experiment created
a. life. b. artificial proteins. c. DNA. d. simple molds. e. amino acids.
Jupiter is a failed star
Indicate whether the statement is true or false