Which orbital shapes are possible under the force of gravity?
A) ellipses only
B) ellipses and spirals
C) ellipses, parabolas, and hyperbolas
D) ellipses, spirals, and parabolas
E) spirals, circles, and squares
C) ellipses, parabolas, and hyperbolas
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RLC Circuits: As shown in the figure, an ac source whose rms voltage is 80 V is in series with a 100-? resistor and a capacitor whose reactance is 200 ? at the frequency of the source. What is the rms voltage across the capacitor?
A. 66 V B. 68 V C. 70 V D. 72 V E. 74 V
The inductive reactance of a 20-mH inductor at a certain frequency is 120 ?. What is the frequency in rad/s?
A) 2000 rad/s B) 4000 rad/s C) 5000 rad/s D) 6000 rad/s E) 7000 rad/s
The solar system is on an arm of the Milky Way galaxy.
Answer the following statement(s) true (T) or false (F)
Solid argon has a density of 1650 kg/m3 . The atomic weight of argon is 40.0 . Assuming each atom occupies a cubical volume, what is the distance between the argon atoms?