## (Solved) WebAssign Molly Leonard PY 211, section 601, Spring 2017 Instructor: William R. Robinson HW 22 PY 211 OSX (Homework) Current Score : - / 5 Due :...

WebAssign Molly Leonard
PY 211, section 601, Spring 2017
Instructor: William R. Robinson HW 22 PY 211 OSX (Homework)
Current Score : â€“ / 5 Due : Tuesday, March 14 2017 10:00 PM EDT 1. â€“/1.66 pointsOSColPhys2016 6.6.WA.051.Tutorial. As you go above the Earth's surface, the acceleration due to gravity will decrease. Find the height
above the Earth's surface where this value will be 1/290 g.
m
Tutorial 2. â€“/1.66 pointsOSColPhys2016 6.6.WA.055.Tutorial. A geosynchronous Earth satellite is one that remains above the same point on Earth (provided it
orbits in the equatorial plane in the same direction as Earth's rotation). Such orbits are useful for
communication and weather observation. Calculate the radius of such an orbit.
Mass of Earth = ME = 5.97 1024 kg. m
Tutorial 3. â€“/1.68 pointsOSColPhys2016 6.6.WA.060.Tutorial. Two planets P1 and P2 orbit around a star S in circular orbits with speeds v1 = 46.6 km/s, and
v2 = 56.6 km/s respectively.
(a) If the period of the first planet P1 is 730 years what is the mass of the star it orbits
around?
kg
(b) Determine the orbital period of P2.
Tutorial

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