A) (2 pts) what must be equal for all streams entering an open feed-water heater? b) (3 pts) define the mean-effective-pressure and show the equation relating it to net work. c) (5 pts) state the air-standard assumptions and the cold-air-standard assumptions

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?

Ineed the answer to question 1 , i’m desperate

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?