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palash
Questions (2)
a ring made of diamond and gold ( sp. gravity respectively 3.5 and 17.5) weight 7.35*10^-3 kg. when immersed in water , the ring
1 answer
1,055 views
A player kicks a football at an angle of 45 degree with initial speed of 20 metre per second a second player on the goal line 60
2 answers
922 views
