A scout troop is practicing its orienting skills with map and compass. First they walk due east for 1.5 km. Next, they walk 45° west of north for 4.1 km. In what direction must they walk to go directly back to their starting point? How far will they have to walk?

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.