14. A planet of radius 7.0 ×10' m has a gravitational field strength of 68 N/kg at its surface. What is the period of a satellite orbiting this planet at a radius of 1.4 ×10° m (twice the planet's radius)? Mp- grz G | mus GMpn

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Chapter7: Gravitation
Section: Chapter Questions
Problem 74A
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Why when I replace 68 N/kg with GM/r^2 in the equation GMm/r^2 = 4(PI^2)(r)/T^2 I get a different answer? The correct answer is 1.8 * 10^4 s, but I got 9.0 * 10^3 s

14. A planet of radius 7.0 ×10' m has a gravitational field strength of 68 N/kg at its surface. What is the
period of a satellite orbiting this planet at a radius of 1.4 ×10* m (twice the planet's radius)?
g-oMe , Mp- go?
9-GMp
G
G Mpm
てMや
Transcribed Image Text:14. A planet of radius 7.0 ×10' m has a gravitational field strength of 68 N/kg at its surface. What is the period of a satellite orbiting this planet at a radius of 1.4 ×10* m (twice the planet's radius)? g-oMe , Mp- go? 9-GMp G G Mpm てMや
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