Physics, 25.12.2019 20:31 jaygamer37
Planetary nebulae are characterized by an emission spectrum consisting of balmer (hydrogen) emission lines and a pair of strong emission lines at 4959˚a and 5007˚a that were quite mysterious when first seen. describe the process that is responsible for the production of these lines. where does the energy that is radiated in these lines come from? why were these lines so mysterious when first observed?
Answers: 3
Physics, 21.06.2019 23:20
Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
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The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.
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The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
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Planetary nebulae are characterized by an emission spectrum consisting of balmer (hydrogen) emission...
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