The mass of Saturn is 5.68 ✕ 1026 kg, and the mass of Neptune is 1.02 ✕ 1026 kg. The average distance of separation, measured between their centers, is 3.07 ✕ 109 km. (a)
Locate the center of mass (in m) of the Saturn-Neptune system as measured from the center of Saturn.

Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.

What is offspring? why does a longer life span mean a higher chance of producing offspring?