A60-gallon water heater is initially filled with water at 50°f. determine how much energy [in btu) needs to be transferredto the water to raise its temperature to 120‘f. evaluate the water properties at an average water temperature of 85°f.

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan