The angle of elevation of an airplane from a point on the ground is 600 . After a flight of 30 seconds, the angle of elevation becomes 300 . If the airplane is flying at a constant height of 3000√3 m, find the speed of the airplane.
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Answer: The two features of carbon that give rise to a large number of compounds are as follows: (i) Catenation − It is the ability to form bonds with other atoms of carbon. (ii) Tetravalency − With the valency of four, carbon is capable of bonding with four other atoms
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