A solid conducting sphere of 10-cm radius has a net charge of 18 nC. If the potential at infinity is taken as zero, what is the potential at the center of the sphere?
a. 2.1 ?V
b. 16 ?V
c. 1.6 × 10^3 V
d. >1.6 × 10^4 V
e. 13 ?V
c
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In a parallel circuit with three resistors all the same size, the current flow though each leg of the circuit will be equal
a. True b. False Indicate whether the statement is true or false
What was the first evidence that quasars were different from astronomical objects before they were observed in visual wavelengths?
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Water flows over a waterfall that is 20 m high at the rate of 4.0 × 104 kg/s. If this water powers an electric generator with a 40% efficiency, how many watts of electric power can be supplied?
What will be an ideal response?
Reza's face is 20 cm in front of a concave shaving mirror having a focal length of magnitude 30 cm. How large is the image of his face?
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