Physics, 27.08.2019 01:30 treyceratops1082
When an electric circuit operates, a buzzer makes a sound. what happens to the electric charges in this circuit?
the electric charges move from the energy source and are used up at the switch.
the electric charges move from the energy source and are used up at the buzzer.
the electric charges move from the buzzer through the energy source and back to the buzzer.
the electric charges move from the energy source through the buzzer and back to the energy source.
Answers: 2
Physics, 22.06.2019 05:30
Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
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Physics, 22.06.2019 12:00
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
Physics, 23.06.2019 01:00
The receptor cells that convert light energy into neural signals are called
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When an electric circuit operates, a buzzer makes a sound. what happens to the electric charges in t...
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