A large object called Sedna has been found past the orbit of Pluto. Parallax measurements from the Hubble Space telescope indicate Sedna is at a distance of 990 A. U. Calculations indicate its average distance from the Sun is 532 A. U., and its Perihelion is at 76 A. U. Based on this information, is this orbit highly eccentric, or not very eccentric? 7.) Based on the information given in question #6. What is the orbital period for Sedna?

True or false graphs must include scales that increase by the same amount

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?

Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r