Tides are caused by

a. the gravitational pull of the Moon and the Sun.
b. Earth's rotation.
c. the Moon keeping the same face toward Earth.
d. none of these.


a

Physics & Space Science

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If the voltage amplitude across an 8.50-nF capacitor is equal to 12.0 V when the current amplitude through it is 3.33 mA, the frequency is closest to:

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A certain ac signal at 1000 Hz is applied across an inductor and a 100-? resistor. If the power factor of the circuit is 0.400, what is the impedance of this circuit?

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What will be an ideal response?

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