Based on everything you have learned about the formation of our solar system, which of the following statements is probably not true?
A) Only a tiny percentage of stars are surrounded by spinning disks of gas during their formation.
B) Within a star's planetary system, all its planets will tend to orbit in the same direction and approximately the same plane.
C) Planets are common, and many or most stars have them.
D) Other planetary systems will have far more numerous asteroids and comets than actual planets.
A) Only a tiny percentage of stars are surrounded by spinning disks of gas during their formation.
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In our solar system, Jovian planets are
A) large, made mostly of gases and liquids with low densities, and found far from the Sun B) small, made of pure rock with high densities, and found close to the Sun C) large, made of pure gases with low densities, and found far from the Sun D) small, made mostly of rock and iron with high densities, and found close to the Sun
The Kronig-Penney model for electrons within a semiconductor utilizes all of these quantum mechanical constructs EXCEPT:
How is light different from sound?
A. Sound requires a medium to move through; light does not. B. Light can be treated as a wave; sound cannot. C. Sound of any frequency can be heard; only visible light can be seen. D. Light can be reflected from a surface; sound cannot.
When strong solar wind storms are diverted poleward by our magnetic fields, we often observe ________ in the ionosphere
Fill in the blank(s) with correct word