Question
The height of a geo-stationary satellite from the
Earth's surface is approximately :Solution
A geo stationary orbit is a circular orbit 35,786 kilometres above the Earth's equator and following the direction of the Earth's rotation.Communications satellitesandweather satellites are of ten given geostationary orbits,so that the satellite antennas that communicate with them do not have to move to track them,but can be pointed permanently at the position in the sky where they stay.
I. Â 2(x+2)+ 2(-x)=5
II. Â (1/(y+1)+ 1/(y+5))=(1/(y+2)+ Â 1/(y+4))
I. x − √2401 = 0
II. y2 − 2401 = 0
I. 6 y² + 11 y – 7= 0
II. 21 x² + 5 x – 6 = 0
I. 22x² - 97x + 105 = 0
II. 35y² - 61y + 24 = 0
I. p2Â - 53p + 672 = 0
II. q2Â - 27q + 126Â = 0
I. 17x² - 26x – 16 = 0
II. 17y²- 26y + 9 = 0
I. x2 – 39x + 360 = 0
II. y2 – 36y + 315 = 0
If the roots of the quadratic equation 5x² + 4x + 6 = 0 are α and β, then what is the value of [(1/α) + (1/β)]?
...(i) 2x² – 12x + 16 = 0
(ii) 2y² – 20y + 48 = 0
l). 2p² + 12p + 18 = 0Â
ll). 3q² + 13q + 12 = 0
Relevant for Exams:
