A 400 kg train car moving at 10 m/s slams into a second train car with a mass of 200 kg at rest. The two train cars stay attached and continue rolling down the track. What is the velocity of
the train cars after the collision?

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.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car