Job Recruitment Website - Property management - (20 1 1? At 2010/017 00: 00, China successfully launched the Beidou-2 satellite and fixed it in the geosynchronous satellite orbit.
(20 1 1? At 2010/017 00: 00, China successfully launched the Beidou-2 satellite and fixed it in the geosynchronous satellite orbit.
Isocentric force = universal gravitation: GMmr2=mv2r=mω2r=m(2πT)2r=ma.
The solution is v = GMR1t = 2π rv = 2π r3gm2ω = GMR 33a = GMR 2④.
It is known that the linear velocity, angular velocity and acceleration with large radius are small and the period is long.
A Beidou-2 satellite has a large radius, so its linear velocity is small, so A is wrong.
B Beidou-2 satellite has a large radius, so it has a long period. Therefore, B is correct.
C Beidou-2 satellite has a large radius, so its angular velocity is small, so C is wrong.
D Beidou-2 satellite has a large radius and centripetal acceleration is small, so D is wrong.
So choose: B.
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