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Questions in physics
📝 Answered - How do changes in voltage or resistance affect current in an electric circuit?
📝 Answered - To say that one wave is out of phase with another is to say that the waves are A. all of the above B. of different amplitudes. C. out of step. D. of different wavelengths. E. of different frequencies.
📝 Answered - Which best describes what Einstein's theories tried to explain? A. the creation of the universe B. evolution and human development C. how the physical world functions D. the possibility of time travel
📝 Answered - For the [tex]$n=3$[/tex] electron shell, which of the following quantum numbers are valid? Check all that apply. [tex]$I=3$[/tex] [tex]$m=3$[/tex] [tex]$I=0$[/tex] [tex]$m=-2$[/tex] [tex]$I=-1$[/tex] [tex]$m=2$[/tex]
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - What is required for an electric charge to flow through a wire? A. zero resistance in the wire B. a balance of electric potential C. high resistance in the wire D. a difference in electric potential
📝 Answered - Given the formula [tex]$E=I R$[/tex], what is the formula for [tex]$R$[/tex]? A. [tex]$R=I E$[/tex] B. [tex]$R=I \div E$[/tex] C. [tex]$R=E I$[/tex] D. [tex]$R=E+I$[/tex]
📝 Answered - Which of the following types of effects does electricity exhibit? A. magnetic B. magnetic and thermal C. magnetic and chemical D. magnetic, thermal, and chemical
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
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