LC Circuits: What capacitance is needed in series with a 3.7-mH inductor so the circuit will oscillate at a frequency of 1000 Hz?
A. 0.15 mF
B. 15 ?F
C. 6.8 ?F
D. 0.015 ?F
Answer: C
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Which of the following best describes how galaxies are distributed on large scales in the universe?
A) Galaxies are uniformly distributed throughout space. B) Galaxies are randomly distributed throughout space. C) Galaxies are distributed in large, elongated chains radiating outward from a common center. D) Galaxies appear to be distributed in chains and sheets that surround great voids. E) Galaxies are distributed in a series of concentric spherical shells around a common center.
Collisions in which kinetic energy is conserved are said to be inelastic collisions
Indicate whether the statement is true or false
The alpha scattering experiment resulted in the discovery of the ______________
Fill in the blank(s) with correct word
Considering only the role of dark energy and keeping all other factors the same, which hypothetical universe is oldest?
A) the one with more dark energy B) the one with less dark energy C) Dark energy doesn't affect the inferred age of the universe.