Technician A says that when computer-controlled, electronically variable steering (EVS) is used on current trucks, it must have a full redundancy to mechanical operation. Technician B says that an advantage of EVS is that hydraulic-assist pressure can be managed independently from engine speed. Who is correct

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?