Approximately how large in diameter would the star Betelgeuse be on this same scale?
A) 40 centimeters (the size of a typical beach ball)
B) 6 meters (roughly the size of a dorm room)
C) 130 meters (slightly larger than a football field)
D) 3 kilometers (the size of a small town)
D) 3 kilometers (the size of a small town)
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What is the unified model of active galactic nuclei? How does it explain differences in the continuous spectrum and emission lines of an active galactic nucleus?
What will be an ideal response?
Planetary systems discovered around other stars
A) all have exactly the same layout as the planets in our own solar system B) all have completely different layouts as the planets in our own solar system C) exhibit a range of different layouts, some being very similar to our solar system while others being very different D) all have very similar but not identical layout to our solar system
The person who expounded the uncertainty principle was
a. Max Planck. b. Albert Einstein. c. Neils Bohr. d. Erwin Schrödinger. e. Werner Heisenberg.
The point P lies along the perpendicular bisector of the line connecting two long straight wires S and T perpendicular to the page. A set of directions A through H is shown next to the diagram. When the two equal currents in the wires are directed into the page, the direction of the magnetic field at P is closest to the direction of
a.
A
b.
B.
c.
C.
d.
D.
e.
E.