Propane gas (C3H8) and air enter a constant pressure combustor at 7 celcius and 1 atm. The mass flow rate of propane is 0.005 kg/min and 50% excess air flows into the combustor. What is the air-to-fuel ratio?

The denser a substance, the more tightly packed it is. the table below shows the volume and mass of two different substances. comparison of substances substance volume (cm3) mass (g) r 22 10 s 55 25 which of the two substances is more tightly packed? object r is more tightly packed. object s is more tightly packed. both objects are packed equally tightly. this cannot be determined.

Calculate the average distances the car and the washer traveled from the top of the track. record the averages and your qualitative observations in table c of your student guide. record what happened to the washer after the car hit the textbook. explain whether the washer did the same thing every time. what is the average distance the car traveled? cm what is the average distance the washer traveled? cm

Brian is a healthy young man. he has been training with his teammates for a 50-yard dash for months. however, even with practice, he cannot run fast enough to qualify. what is the most likely reason that brian can't qualify? a. he is not eating the correct serving size of food during his meals. b. he does not have a well-defined goal or self-monitoring habits. c. his genetics are influencing some of his skill-related fitness components. d. his teammates are not providing enough support.