a). Fox whot valve of domping constont x(t) = exb(-bt/am)
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- In 1923, the United States Army (there was no United States Air Force at that time) set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 38 h. During the flight, the refueling planes were able to air-transfer a total of 687 gallons of fuel to the plane in 9 refueling transfers. Assume that the refueling nozzle had a diameter of 1.25 in and each refueling took 2.47 min to perform. Calculate the velocity of the fuel through the nozzle. Assume that the fuel filled the entire cross-sectional area of the nozzle.rge tank contuiñing n-hexane is under a pressure of 3.40 bar absolute. When a valve on the bottom of the tank is opened, the n-hexane drains freely though a l.00-cm ID tube whose out let is 7.00 m below the surface of the n-hexane . The pressure at the mtlet of the dacharging discharge pipe is I am. P (bar) liguid. hlom) Use the Benmoulli equarion to estimare the n-hexane discharge velocity and flow rake in |min when the discharge valve is fully opened. Negleut the rare of tal of the nhexane ievel in the tunk. L/minL (a) The heart pumps blood into the aorta at a rate of 4 . Calculate the average speed of blood if min the aorta's diameter is 2.1 cm. 1155 V blood cm S (b) The aorta branches many times until the blood finally reaches the smallest branch: the capillaries. Each capillary has an average diameter of 6.9 μm and the blood slows down to 0.5 the number of capillaries in the body. Does this answer look reasonable? mm Calculate . S n 1840 caps capillaries (c) For what duration of time is a red blood cell in a capillary if the average capillary length is 1 mm? t = 0.0867 S
- 49) High line pressure may be produced by O a wide-open throttle. O low intake manifold vacuum. a heavily loaded engine. O All of the above.Please asapDuring each heartbeat, approximately 70cm3 of blood is pushed from the heart at an average pressure of 105 mm-Hg. Calculate the power output of the heart, in watts, assuming 70 beats per minute.
- A process at constant volume pressure takes n mole vibrating diatomic from an initial temperature T to a final temperature 3T. Calculate the change in enthalpy, AH. Select one: O a. O b. ΔΗ AH = 9nRT AU = 5n RT O c. AH 11nRT ΔΗ O d. AH = 7nRT -Some incandescent light bulbs are filled with argon, because it is an inert gas. An argon atom has a mass of 6.63 ×10−26×10-26 kg. A)what is the rms speed in meters per second for argon atoms near the filament assuming their tempature is 2650kDetermine the signs of (d) Q, (e) W, and (f) ΔU associated with process BC. D) q, posative, negative, or zero E) w, posative, negative, or zero F) Δu, posative, negative, or zero
- Water vapor at a pressure 0f 2X10 N/m2 0nd a dempirature of as0°c is 0.32 x106 N/m2.following expanded to a yoessune of ec.For the low P.V1.25 this expanston determine: a. Pinal vapor condnion b. Syecipie haat transpan c. Changis in tntroyy SIDUIn 1923, the United States Army (there was no U.S. Air Force at that time) set a record for in-flight refueling of airplanes. Using two refueling planes, an Airco DH-4B biplane was able to remain in flight for 36 hours. During the flight, the refueling planes were able to air-transfer a total of 687 gallons of fuel to the plane in 9 refueling transfers. Assume that the refueling nozzle had a diameter of 1.65 inches and each refueling took 2.39 minutes to perform. Calculate the velocity of the fuel through the nozzle. Assume that the fuel filled the entire cross-sectional area of the nozzle.H0.1B mole Helionm filled balloen ises to is 0.03 m3 and autside teme is 58°F. what 1S the pressure. an alti tuae where ist v