Steam at 4 MPa and 4008C enters a nozzle steadilywith a velocity of 60 m/s, and it leaves at 2 MPa and 3008C. The inlet area of the nozzle is 50 cm2, and heat is being lost at a rate of 75 kJ/s. Determine (a) the mass flow rate of thesteam, (b) the exit velocity of the steam, and(c) the exit area of the nozzle

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.