Why is it easier to demonstrate electrostatic phenomena in Fairbanks, Alaska, than in Honolulu, Hawaii

The slope of a velocity time graph over any interval of time gives the during that interval

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

(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.