Spotlight HSC Physics Questions on Space (1 Viewer)

Dragonmaster262

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This book is a bit dodgy as it doesn't include all the formulas. I'm stuck on a couple of questions so I would appreciate any help.

Q49) The space station Mir had a mass of 130 tonnes. It operated in a near circular orbit at altitude 480 km. Its centripetal force is 1.10 x 10^6 N. Calculate its acceleration due to gravity.

Q51) A satellite is put in circular orbit at an altitude of 856 km. Calculate its period in hours.

Q52) A weather observation satellite of mass 1150 kg is put into circular orbit. It circles the Earth exactly 9 times each day. Calculate its (a) orbital radius (b) altitude.

When you answer please include the formulas. Thanks in advance!:wave:
 

Aerath

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The formula is there on Page 18.
 

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