When an RLC series circuit is in resonance, its impedance is:

a. zero.
b. equal to its resistance.
c. a maximum.
d. ?/2 ?.


b

Physics & Space Science

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You and your friend want to go to the top of the Eiffel Tower. Your friend takes the elevator straight up. You decide to walk up the spiral stairway, taking longer to do so

Compare the gravitational potential energy (U) of you and your friend, after you both reach the top. A) It is impossible to tell, since the times are unknown. B) It is impossible to tell, since the distances are unknown. C) Your friend's U is greater than your U, because she got to the top faster. D) Both of you have the same amount of potential energy. E) Your U is greater than your friend's U, because you traveled a greater distance in getting to the top.

Physics & Space Science

How "slow" must a 200-g ball move to have a de Broglie wavelength of 1.0 mm? (h = 6.626 × 10-34 J ? s)

What will be an ideal response?

Physics & Space Science

A metal block sits on top of a floating wooden block. If the metal block is suspended from the bottom of the wooden block, what happens to the level of water in the beaker?

Physics & Space Science

A solid conducting sphere of 10 cm radius has a net charge of 40 nC. If the potential at infinity is taken as zero, what is the potential at the center of the sphere?

a. 360 mV c. >3.6 × 10^4 V b. 3.6 × 10^3 V d. 36 mV

Physics & Space Science