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CBSE->Std 9 Questions

Total Questions 1962
an artificial satellite is moving in a circular orbit of radius 42250 km.calculate its speed if it takes 24 hours to revolve around the earth?
a motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 s-2 for 8.0 s how far does the boat travel this time?
a motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 s-2 for 8.0 s how far does the boat travel this time?
an athlete completes one round of a circular track of diameter 200 meters in 40 seconds.what will be the distance covered and the displacement at the end of 2 minutes 20 seconds?
WHO FOUND OUT HUMAN CELL
which is the most largest brand in the world?
(3/5)4 (8/5)-12 (32/5)6 =
if a=9+4x root of5 and b=1/a then find the value of a2 + b2
WHY DO CLOUDS TURN GREY ?
who is john dalton ?
who is john dalton ?
name ten types of microscopes and it's uses.
who found out this- cytoplasm, cell membrane ,amoeba ,bacteria ,animal cell ,prokaryotic cell .plant cell, DNA eukaryotic cell mitochondria ,vacuoles,plastid, lysosomes ,endoplasmic reticulam
About UN Security Council
if x=2+root5 then x+1/x=?
What makes a government a non-democratic government?
difference between plant tissues and animal tissues
how we explain the observation of water boiling at steady temperature while being heated continuously?
which all are the union tertories of india
How do we do long division method in square root