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Suppose you find a star which has helium fusion in the core surrounded by a shell of hydrogen fusion. What is supporting the structure of the stellar core against the relentless force of gravity
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Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2
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Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
Suppose you find a star which has helium fusion in the core surrounded by a shell of hydrogen fusion...
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