Which planetary fact(s) is(are) explained by the solar nebula theory?
a. The orbits are all approximately in the same plane
b. The orbits are all in the same direction
c. Jovian planets are mostly H and He
d. Terrestrial planets are mostly rock and iron
e. All of the other choices are correct.
e
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About where is our solar system located within the Milky Way Galaxy?
A) at the center of the galaxy B) about 10 percent of the way from the center of the galaxy to the edge of the galactic disk C) about halfway from the center of the galaxy to the edge of the galactic disk D) near the far edge of the galactic disk E) in the halo of the galaxy above the galactic disk
The wavelength from an FM station broadcasting at 93.9 megahertz on your radio is
a. 31.3 m b. 3.13 m c. 0.313 m d. 0.0313 m e. none of the above
Compressive forces cause the crust to
A) buckle and fold, thereby shortening the crustal surface. B) buckle and fold, thereby lengthening the crustal surface. C) stretch and pull, thereby shortening the crustal surface. D) break and fracture, thereby lengthening the crustal surface.
Find the magnetic force when a charge 3.5C with flux density of 4 units is having a velocity of 2m/s.
a). 14. b). 28. c). 7. d). 32.