Q-Cars are usually made of metal. In an accident they bent but donot break. Why is this useful ?

If vehicles are made from plastic or ceramic, they will not stand up very well in collisions. Just think about a car lying in the side road destroyed pieces like a dropped ceramic object. Utilizing metal as the main body for the vehicle was purposefully and adequately chosen, but not all may think about why the element metal is such a right choice.

Explanation:

lipid

explanation:

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.