"a solar hot-water heating system consists of a hot-water tank and a solar panel. the tank is well insulated and has a time constant of 64 hr. the solar panel generates 2000 btu/hr during the day, and the tank has a heat capacity of 2°f per thousand btu. if the water in the tank is initially 110°f and the room temperature outside the tank is 80°f what will be the temperature in the tank after 12 hrs of sunlight"

show full work (maybe a pic) and answer asap giving tons of points for it