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netineya [11]
3 years ago
10

Electric fences are not connected to the ground in the circuit. A. True B. False

Physics
2 answers:
shusha [124]3 years ago
8 0

It would be A.True because they to connect it to through the ground

jekas [21]3 years ago
4 0
The answer would be A. True
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Imagine that an electron in an excited state in a nitrogen molecule decays to its ground state, emitting a photon with a frequen
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Since energy cannot be created nor destroyed, the change in energy of the electron must be equal to the energy of the emitted photon.

The energy of the emitted photon is given by:
E=hf
where
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f is the photon frequency
Substituting f=8.88 \cdot 10^{14}Hz, we find
E=hf=(6.6 \cdot 10^{-34} Js)(8.88 \cdot 10^{14} Hz)=5.86 \cdot 10^{-19} J

This is the energy given to the emitted photon; it means this is also equal to the energy lost by the electron in the transition, so the variation of energy of the electron will have a negative sign (because the electron is losing energy by decaying from an excited state, with higher energy, to the ground state, with lower energy)
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Answer:

D. demand; increased

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