Kirchhoff's Rules: Determine the current in the 18-? resistor for the circuit shown in the figure assuming that the batteries are ideal.
A. 0.25 A
B. 0.50 A
C. 0.75 A
D. 1.0 A
Answer: B
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An uncharged spherical conducting shell surrounds a charge ?q at the center of the shell. Then charge +3q is placed on the outside of the shell. When static equilibrium is reached, the charges on the inner and outer surfaces of the shell are, respectively,
a. +q, ?q. b. ?q, +q. c. +q, +2q. d. +2q, +q. e. +3q, 0.
Globular clusters are found in the Milky Way's
Indicate whether the statement is true or false.
A physicist claims that she has found a new particle with a mass 200 000 times the mass of the proton (1.67 × 10^?27 kg) and a charge of 3.20 × 10^?19 C. If she is correct, such a particle traveling in a circle in a uniform 5.00 T magnetic field at a velocity of 2 500 m/s will have a radius of
a. 0.261 m. b. 0.522 m. c. 1.04 m. d. 3.27 m. e. 3.13 × 10^26 m.
Jupiter is considered a near Earth object
Indicate whether the statement is true or false