Physics, 07.03.2020 00:25 mjohnson05
The earth has a vertical electric field at the surface, pointing down, that averages 120 N/C . This field is maintained by various atmospheric processes, including lightning.
1. What is the excess charge on the surface of the earth?
Answers: 2
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Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?
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Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
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Describe the three ray tracing steps used to identify an image for the given situation.
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The earth has a vertical electric field at the surface, pointing down, that averages 120 N/C . This...
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