Your starship, the Aimless Wanderer, lands on the mysterious planet Mongo. As chief scientist engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 15.0 m/s returns to the ground in 7.00 s; the circumference of Mongo at the equator is 1.00×100 km; and there is no appreciable atmosphere on Mongo The starship commander, Captain Confusion, asks for the following information: what is the mass of Mongo? Express your answer to three significant figures i万 m1.58. 1026 kg Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Part B f the Aimless Wanderer goes into a circular orbit 1.00×104 km above the surface of Mongo, how many hours wil it take the ship to complete one orbit? Express your answer to three significant figures 17.4 Submit My Answers Give Up