a car engine is 620 degree celcius and the exhaust is 140 celciu. It is 70% of ideal efficiency. How much work will the car be able to do for every 1500 Joules that it extracts from the engine

An observer that stands still as the electron moves by him, will observe

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.

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy