Briefly summarize the differences between terrestrial and jovian planets
What will be an ideal response?
Terrestrial planets are metallic or rocky in composition, close to the Sun, have higher average density, have a solid surface, are warmer at the surface, and have few if any moons. Jovian planets are gaseous in composition, lower in density, have no solid surface, are farther from the Sun, and have rings and moons.
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Based on observations, which of the following statements about stars in the Milky Way is generally true?
A) The older the star, the lower its abundance of heavy elements. B) The younger the star, the higher its mass. C) The older the star, the faster its orbital speed. D) The less massive the star, the older it is. E) The older the star, the bluer its color.
Determine the number of significant figures in 100.01 x 103 meters
What will be an ideal response?
A reason for electric shielding inside a conductor is that any free electrons inside would
A) not obey the inverse-square law. B) cancel one another. C) be set in motion until equilibrium is established, on the outside. D) all of the above E) none of the above
Calculate the de Broglie wavelength for an electron (m = 1 × 10^-30 kg) moving at 3.1 × 10^6 m/s
a. 1.8 × 10^–10m b. 2.4 × 10^–10m c. 1.9 × 10^–10m d. 2.1 × 10^–10m