What will happen when lightning hits rubber? (Also giving out free points) <3

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

The material that keeps its new shape after it is stretched is called?

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.