Universe
Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 4, Problem 9CC
To determine

From the planets, Venus with e=0.007 and Mars with eccentricity e=0.093, which planet’s orbit is closer to a circular orbit.

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Europa orbits Jupiter at a distance of 6.7 x 108 m from Jupiter's cloudtops (the surface of the planet). If Jupiter's mass is 1.9 x 1027 kg and radius is 6.8 x 107 m, what is the speed of Europa as it orbits in m/s? Round to the nearest hundredth. Don't worry about putting units, just put the number.
Neptune orbits the Sun with an orbital radius of 4.495 x 10^12 m. If the earth to sun distance 1 A.U. = 1.5 x 10^11 m, a) Determine how many A.U.'s is Neptune's orbital radius (Round to the nearest tenth). b) Given the Sun's mass is 1.99 x 10^30 kg , use Newton's modified version of Kepler's formula T^2 = (4pi^2/Gm(star)) x d^3 to find the period in seconds using scientific notation. (Round to the nearest thousandth). c) Convert the period in part b) to years(Round to the nearest tenth).
A satellite orbits a planet in a circular orbit at an altitude (distance above the surface) of 1000km. The radius of the planet is 8000 km. The mass of the planet is 8 x 10^24 kg. What is the orbital speed? Your answer The gravitational force between a planet and its moon is óx10^16 N. For another moon orbiting the same planet with twice the orbital radius and 3 times the 5.
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