Infer: Four satellites in the same orbit (at the same distance from the Earth) are orbiting Earth along the paths shown below. Satellite's (1) mass is 2500 kg, satellite's (2) mass is 4500kg, satellite's (3) mass is 3500kg, satellite's (4) mass is 3750kg. Infer which satellite experiences the weakest gravitational force towards Earth? Explain your reasoning.

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.