Ask a Teacher

Search

CBSE Questions

Total Questions 9982
valency of carbon, hydrogen, etc. can be determined by the number of valence electrons, but how to determine the valency of NO2,SO4,etc.
what is Fe3O4
why is lithium not included in the reactivity series
what is the scientitic cause of hiccups
In triangle ABC,D is the mid point of BC and E is the mid point of AD. BE when produced meets AC at Q. Prove that the ratio of BE to EQ is 3 is to 1?
Which are the drainage pattern formed by river Ganges ?
Siva Samudram , the second biggest waterfall of India is formed by which river?
what is stomata?
Who is Ralph Waldo Emerson?
Who is George Herbert?
Total amount of rainfall in the world in one year.
How do humans reproduce
what is the equation involved in hydrogen bomb
who wrote 'swamis grandmother'
who wrote 'trojan war'
What are the relationships between a longitude of a place and its time zone?
Howe Black holes came in the space?
Why does a small rock sink in water?
The rear side of a truck is open and a box of mass 40 kg is placed on the truck 4 m away from the open end. If coefficient of friction=0.15,g=10m/second square and the truck starts form rest with an acceleration of 2m/second square on a straight road.Calculate the distance of the truck from the starting when the box will fall off.
A force of 98 N is just able to move a body weighing 45 kg on rough horizontal surface. Calculate the coefficient of friction and angle of friction.