What is the Reynolds number of water at 20⁰C flowing at 0.25 m/s through a 5-mm-diameter tube? If the pipe is now heated, at what mean water temperature will the flow transition to turbulence? Assume the velocity of the flow remains constant.

Q: calculate density of air at 100 degrees Celsius and 2.105 Pa.

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Q: A U-tube manometer employs mercury having specific gravity of 13.5. one side of the manometer is…

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Q: Given P=10psi T= -20°F We know that, Dens?ty of air at a state Ps given by, P %3D RT P=(10psi) (144…

A: Solution:-Given thatAirP=10 psiT=-20°F=-20+459.67=439.67°RIdeal Gas equationPV=nR Twhere R=Universal…

Q: Water flows at 0.20 L/sL/s through a 10-mm-long garden hose 2.5 cmcm in diameter that is lying flat…

A: Solution:-

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A: Absolute pressure is defined as the pressure relative to the zero pressure in the empty air-free…

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Q: Calculate the correction that needs to be applied to a T 89° C if barometric pressure when measuring…

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Q: In one observation, the column in a mercury barometer (as is shown in the figure) has a measured…

A: Solutionpressure measured using Barometer is given asP0=Pgh --(1)for given problem-P=13608*104kg/m3,…

Q: A steel sphere with a density of 7.9 g/cm3 and a diameter of 4 mm is seen to fall at 55 s when left…

A: The radius of the sphere is, r=d2=4 mm2=2 mm0.001 m1 mm=0.002 m The velocity of the oil fall is,…

Q: QIC S A liquid with a coef- ficient of volume expansion of B just fills a spherical flask of volume…

A: A)The formula for the overflow volume is

Q: At 1 atm, an 80 kg ice skater manages 2 cm2 contact area with the ice (really sharp skates). What…

A: Mass of skater = 80 kg Contact Area = 2 cm 2 A = 0.0002 m2 Force = weight of skater F = mg F = 80 *…

Q: 8.48. A jet fighter is flying at M = 2 in still air which has a temperature of 0°F and a pressure of…

A: Given Data: Let us consider the given data, μ =2T=0°Fp=4.0 psi =27579 Nm2A=2.0 ft2 =0.1858 m2 To…

Q: Consider a liquid in a container which is open to the atmosphere. We can assume that its temperature…

A: 1) Temperature of fluid column will remain constant throughout it's depth inside the container. 2)…

Q: b)Air density at 0 ° C and 1 atmosphere pressure is 1.3 kg / m3. Its density reaches 65 kg / m3 at…

A: Given: The density of air at 0°C and 1 atm is, δ1=1.3 kg/m3. The density of air at 0°C and 1 atm is,…

Q: (a) Find the average time (in s) required for an oxygen molecule to diffuse through a 0.195 mm thick…

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Q: Ice at 0.0 ∘C has a density of 917 kg/m3 . A 3.00 cm3 ice cube is gently released inside a small…

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Q: Estimate the 99% boundary layer thickness in the following cases (1) A light breeze over a flat…

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Q: An 80 kg man stands on top of slab of ice on fresh water at 4 degree Celsius. Determine the area of…

A: Given: Slab's thickness is 0.5 m Density of ice is 0.921 g/ml There is 5% ice volume above line of…

Q: 60 D2 D1 The last 40 ° C until the water vapor pressure in the tube shown in Figure 0.75 t/m 2 d. Be…

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Q: 2.18 What is the change in the viscosity and density of water be- tween 10°C and 70°C? What is the…

A: For water when temperature is rising, particles in it starts moving which in turn lowers viscosity .…

Q: Assume that the composition of the earth’s atmosphere is constant below an altitude of 100 km and…

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Q: In one observation, the column in a mercury barometer (as is shown in the figure) has a measured…

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Q: The gauge pressure of the air in a car tire is 210 kPa and its temperature is 25 oC. your tire Since…

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Q: (a) For stagnation point flow as shown, T. Stagnation point B 1, m= = 1,U, = Kr' 2-B Numerically…

A: To determine: The heat transfer rate exchanged by the plate

Q: A deep-sea diver should breathe a gas mixture that has the same oxygen partial pressure as at sea…

A: We must ascertain the oxygen partial pressure at sea level. We have the given data is,  Atomic…

Q: The slope of the solid-liquid coexistence curve in the water phase diagram is-135 atm/K. At 1 atm,…

A: Mass of ice skater (m)=80 kg Acceleration due to gravity (g)=9.8 m/s2 Contact area of the ice skater…

Q: Calculate the correction that needs to be applied to a T = 89°C if barometric pressure when…

A: We know that boiling point of liquid is dependent directly on the atmospheric pressure. More is the…

Q: A circular copper pipe of inner diameter 2 cm and wall thickness 1 mm is carrying water at 1 L/s.…

A: We have to determine the length of the tube. For that we have to determine the following parameters…

Q: Calculate the diameter of the carbon dioxide pipe with a flow rate of 10 kg/h and a velocity 2 m/s…

A: Given:  The mass flow rate of carbon dioxide, m˙ = 10 kg/h velocity of carbon dioxide, v = 2 m/s…

Q: The middle ear has a volume of about 6.0 cm3 when at a pressure of 1.0 ×10^5 N/m^2. Determine the…

A: The temperature of the air remains constant, hence we will use Boyle's law of gas to solve the…

Q: (a) What is the vapor pressure of water at 20.0oC ? (b) What percentage of atmospheric pressure does…

A: (a) The vapor pressure of water is 17.5 torr. Convert it into Pa. P=17.5 torr133.32 Pa1 torr=2333.1…

Q: 1- A sheet of BCC Fe 1.0 mm thick is exposed to a carburizing gas on one side and a decarburizing…

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Q: A NASA Learjet has a section of one wing instrumented with devices capable of measuring temperature…

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Q: Show that the change in density Ap with change in temperature AT is given by Ap =- BPAT where is the…

A: Write the expression for the change in volume.

Q: 4.63 A Pitot-static tube is mounted on an airplane to measure airspeed. At an altitude of 10,000 ft,…

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Q: Air flows isentropically at the rate of 1 kg/s through a duct. At one section of the duct the…

A: To determine the velocity of the stream and the minimum area at the exit of the duct, we can apply…

Q: If the air pressure at a particular place in the mountains is 0.80 atm, estimate the temperature at…

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Q: You can smell perfume very shortly after opening thebottle. To show that it is not reaching your…

A: Given that the diffusion constant D  is 1.00×10–6 m2 /s .

Q: bubble having a diameter of 92 cm is released from a depth of 4.5 m from the bottom of a swimming…

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Q: Calculate the minimum radius in m of a spherical hydrogen balloon that would lift 82kg of load if…

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Q: (C) Explain briefly, can be described the air specification in the isolated cabin by two parameters…

A: Given : Asked to explain briefly how air specification in isolated cabin is maintained by two…

Q: rcraft's thrust given tha re of 166783 Pa and an diameter of 250mm.

A: Given as, M= 0.8, exit pressure= 166783 and temperature= 484 C.

Q: Given the Chamber pressure of 2MPa and temperature of 2600 K. Find the throat conditions assuming…

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