The density of the earth is given by p=3g/4rG where"p" is the density "G" is the gravitational constant 'r' is the radius of the earth and 'g' is the acceleration due to gravity. Show that the relations are correct on the basis of dimensional analysis .

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

Acar travels 40m in 8 seconds find the car speed