2.5 .

11016 km

2.7 .

70.14

2.9 .

( a) 3.842 km/s; ( b) 12605.85 ft/s; ( c) 8594.89 mi/h

2.11 .

42165 km; 0.00018973

2.17 .

( a) 13.994 rev/day; ( b) 0; ( c) ?3.158 deg/day

2.19 .

2451248.5 day; 2451598.0 day; 2452700.1875 day; 2455382.125 day

2.21 .

( a) Jan 3, 0 h; ( b) July 4, 03:00 h; ( c) Oct 27, 2 h 55 min 4.21 s; ( d) Jan 3, 7 h 3 min 57.75 s; (e) January 31, 2 h 26 min 9.6 s

2.23 .

( a) 27027 km; ( b) 0.74718; ( c) 12.277 rad/day; ( d) 12.276 rad/day; ( e) 737.024 min; ( f) ?0.149 deg/day; ( g) 0.007 deg/day

2.25 .

0.856 W

2.27 .

( a) 54.53 rad/day; ( b) ?125.425 ; ( c) 10,509.1 km; ( d) 36.66 S

2.29 .

101.83 W

2.31 .

249.8 ; 84.96 ; 290.7 ; 289.52 ; 6614.9 km

2.33 .

?0.707 deg/day; ?2.502 deg/day; 82.778 rad/day

2.35 .

?0.206 ; 110.063 min

2.37 .

( a) 7234.6 km; ( b) 0 Latitude approximately.

2.39 .

73.521

2.41 .

( a) 07:00 h; ( b) 05:00 h; ( c) 15:00 h; ( d) 20:00 h

3.3 .

Satellite on same longitude as the earth station, and latitude = 76.3 .

3.5