First law: In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force. Second law: In an inertial reference...
The unusual properties of water are due to the strong attractions between adjacent water molecules, which gives the water great cohesion. It also has adhesion properties to other molecules. Each hydrogen...
Q1. SHORT ANSWERS QUESTIONS : (05 MARKS) Wave used by astronauts for communication in space ? Why Sound waves are called mechanical waves? Aircrafts flying at...
It is an elementary and exciting chapter in class 9. You can note this lesson as your revision notes as well. You see several things in this universe, what do you think this universe is made up of? It...