The two stars in a binary star system have masses 2.0 * 1030 kg and 6.0 * 1030 kg. they are separated by 2.0 * 1012 m. what are a. the system’s rotation period, in years?

Which of the following crops is not typically grown in the great plains region? a. corn c. soybeans b. rice d. wheat

Anight-club bouncer, now a top official, put coke or pepsi in it; first three initial. combine all lakes; but i still have more, of all the places; i have the largest shore. what am i? ?

What statement about the economy of france is not true? a. paris is a major manufacturing center b. marseille is a busy seaport on the mediterranean coast c. farming is the major activity in the alps. d. world-famous wines are produced in the bordeaux region c. farming is the major activity in the alps