A truck pushes a mound of dirt 5 meters with a force of 75 newtons. How much work has been done ?

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

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.

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.