What is the SI unit of modulus of elasticity of substance ?Physics A. Nm-2 B. Jm-2 C. Nm-1 D. Being a number it has no unit.
Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is
