Physics, 21.05.2020 20:07 phillswift2020
Transformers are used both to increase the voltage of electricity, so that it can travel long distances, and to decrease the voltage, so that the electricity can be used in your house with relative safety. If the voltage across two wires is raised to 2.5 x 105 V, what is its current if 1.0 x 105 W of power is provided?
Answers: 1
Physics, 21.06.2019 19:30, elijaahstepp041
Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?
Answers: 3
Physics, 22.06.2019 18:00, RyannLambertt7141
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
Physics, 22.06.2019 19:30, cakey3501
The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?
Answers: 1
Physics, 22.06.2019 22:00, dumngirl2504
Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.
Answers: 2
Transformers are used both to increase the voltage of electricity, so that it can travel long distan...
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