A capacitor, in addition to storing charge, also stores electrical energy
Indicate whether the statement is true or false
TRUE
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A long straight wire carrying 15. A is perpendicular to a 0.10 T field. Find the force per meter on the wire
What will be an ideal response?
An electron-volt is
A) the energy of one electron. B) the charge of one electron. C) the energy jump between the first and second energy levels of hydrogen. D) an amount of energy much larger than a joule. E) an amount of energy much smaller than a joule.
Two 10¢ coins (dimes) carrying identical charges are lying 2.5 m apart on a table
If each of these coins experiences an electrostatic force of magnitude 2.0 N due to the other coin, how large is the charge on each coin? (k = 1/4??0 = 9.0 × 109 N ? m2/C2) A) 2.6 ?C B) 26 ?C C) 6.7 ?C D) 5.2 ?C E) 52 ?C
A sample of blood is placed into a centrifuge of radius 15.0 cm. The mass of a red corpuscle is 3.0 × 10^-16 kg, and the centripetal force required to make it settle out of the plasma is 4.0 × 10^-11 N. At how many revolutions per second should the centrifuge be operated?