A new planet is discovered orbiting a star with a mass 3.5' 1031 kg at a distance of 1.2 '1011 m. Assume that the orbit is circular
What is the orbital period of the planet? (G = 6.673 '10-11 Nm2/kg)

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

What reaction is taking place? 02 + c3h8 = h20 + co2