Question

calculate height of orbit above surface of earth in which if sattelite is placed will appear stationary
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Answer 1

here, h = R = 6400km

T = 2π(R + R)/5.592 × 10³

T = 2 × 3.14 × 2 × 6.4 × 10^6/5592

T = 14374.8 sec ≈ 4 hours