A motorcycle moves from rest and accelerates uniformly on a straight road, reaching a speed of 25 ms in 20 s and then moves at a constant speed of 25 ms1 for a distance of 300 m. Determine the total displacement for the entire trip.

The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?