Two nuclei which share the same atomic number Z always are
a. stable. b. unstable. c. isotopes.
d. isobars.
e. radioactive.
C
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Suppose the circuit parameters in a series RLC circuit are: L = 1.00 ?H, C = 10.0 nF, R = 100 ?, and the source voltage is 220 V. Determine the resonant frequency of the circuit and the amplitude of the current at resonance.
What will be an ideal response?
Two point charges are on the x-axis. One charge, 
is located at the origin, and the other charge, 
is located at x = 9.00 m. What is the force on 
?
A. 20.0 nN in the positive x-direction B. 20.0 pN in the positive x-direction C. 20.0 nN in the negative x-direction D. 20.0 pN in the negative x-direction E. 180 nN in the positive x-direction
Gas, lava, and ______________ are the three general products emitted during a volcanic eruption
Fill in the blank(s) with correct word
A radiometer has two square vanes (each measuring 1.0 cm by 1.0 cm), attached to a light horizontal cross arm, and pivoted about a vertical axis through the center, as shown in the figure
The center of each vane is 6.0 cm from the axis. One vane is silvered and it reflects all radiant energy incident upon it. The other vane is blackened and it absorbs all incident radiant energy. An electromagnetic wave with an intensity of 0.30 kW/m2 is incident normally upon the vanes. What is the electromagnetic power absorbed by the blackened vane? (c = 3.00 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) A) 0.030 W B) 0.040 W C) 0.050 W D) 0.060 W E) 0.090 W