Two humid air streams are adiabatically mixed at 1 atm pressure to form a third stream. the first stream has a temperature of 40°c, a relative humidity of 40 percent, and a volumetric flow rate of 3 l/s, while the second stream has a temperature of 15°c, a relative humidity of 80 percent, and a volumetric flow rate of 1 l/s. calculate the third stream’s temperature and relative humidity.

Apiano tuner uses a tuner to create a tone of 5.00 x 10² hz. when a key on the piano is struck he hears 5 beats per second. what is a possible frequency of vibration for the piano string? 2500 hz 1300 hz 605 hz 495 hz

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.