Orbit Orbit condition Example Whiteboards

= Orbit msv2 r or Gmsmc ms42r T2 r2 Example 1 - What is the velocity of orbit 250 miles above the earth? r = 6.38x106 m + (250 mi)(1609 m/mi) = 6782250 m mc = 5.97 x 1024 kg, use mv2/r = Gmm/r2 Do algebra first!!!!!!!! How to enter on calculator TOC

= Orbit msv2 r or Gmsmc ms42r T2 r2 Example 2 - What is the radius of a geosynchronous orbit? T = 23:56:04 = 23(3600) + 56(60) + 4 = 86164 s mc = 5.97 x 1024 kg, use m42r/T2 = Gmm/r2 Algebra TOC

Whiteboards: Orbit 1 | 2 | 3 | 4 TOC

What is the velocity of orbit 7 What is the velocity of orbit 7.2 x 106 m from the earth’s center for a 23.5 kg object? Me = 5.97 x 1024 kg = Gmsmc r2 msv2 r 7436 m/s W 7400 m/s

At what distance from the moon’s center is the orbital velocity 52 At what distance from the moon’s center is the orbital velocity 52.5 m/s? Mm = 7.36 x 1022 kg = Gmsmc r2 msv2 r r = Gmc v2 1781086621 m W 1.78 x 109 m

You are orbiting 2.3 km from the center of an asteroid in a 24,600 kg spacecraft with a period of 2500 seconds. What must be the mass of the asteroid? = Gmsmc r2 ms42r T2 mc = 42r3 GT2 1.15223E+15 kg W 1.2 x 1015 kg

You are orbiting 8.5 x 106 m from the center of a planet with a mass of 4.5 x 1024 kg. Your spaceship has a mass of 45,120 kg. What is your period of motion? = Gmsmc r2 ms42r T2 42r3 Gmc T =  8987.5 s W 9.0 x 103 s