Consider a a uniform spherical cloud (diameter 20 cm). The cloud consists of mono dispersed water droplets with diameter dp=100μm. In one sentence, define what terminal velocity is. Calculate the terminal velocity of a single spherical droplet and determine how long it takes for the droplet to reach the floor if travelling from a height of 2 m. You can assume Stokes flow. Data: Air density: 1.2 kg m-3 Air viscosity: 1.81x10-5Pa s Water density: 1000 kg m-3 Water viscosity: 0.001Pa s Gravity: 9.81 m s-2

Q: 11. Determine the convective acceleration at point 2. 12. If the density, p at point 2 is 1.25…

A: Given Data: V1=64 m/s V2=68 m/s V3=72 m/s ∆x=60cm=0.6m density(ρ2)=1.25 kg/m3 at point2   It is…

Q: A sphere of diameter 5.0 cm is moving in still water at a velocity of 2.0 m/s. The kinematic…

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Q: Two forces act on a 4.5kg block resting on a surface with 0.3 coefficient of kinetic friction. 1.…

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Q: A Pitot tube (coefficient = 1.0) is used to measure the velocity of air of mass density 1.2 kg/m2…

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Q: In the tank-pipe-tank system given in the figure, water flows from A to C in horizontal pipes. Darcy…

A: The free surface is the fluid surface subject to zero parallel shear stress, such as the interface…

Q: A jet of water discharges into a 90-cm open cylindrical tank with a height of 1 m. The…

A:

Q: A reducing elbow is used to deflect water flow at a rate of 14 kg/s in a horizontal pipe upward 30°…

A: Given data:m=14 kg/s˙A1=113 cm2A2=7 cm2h=30 cm

Q: A horizontal nozzle of 30 mm diameter discharges a study Jet of water into the atmosphere at a rate…

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Q: 2. The compressed air tank has a volume of 0.8 m. The temperature is 20°C and the atmospheric…

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Q: SITUATION 3. A 75mm DIAMETER ORIFICE DUNDER THE HEAD OF 5m DISCHARGES OIL WITH SG = 0.81. IF THE…

A: We will use formula of Cv and Head loss.

Q: Friction Loss (Darcy Weisbach Equation) Oil flows through a 100 mm diameter horizontal pipe…

A: Diameter of the horizontal pipe d=100 mm=0.1 m, Friction factor f = 0.05, Length L=100 m, Velocity…

Q: Resolve the internal load in each member of the truss by the method of joints. 10kN Sm 3m 2 m 4 m 6m

A:

Q: 1. For a constant mass flow rate, and a constant friction factor, show that the pressure drop in a…

A: Pressure Drop:   The total energy loss in a pipe system is the sum of the major and minor losses.…

Q: The most concrete object on the Ladder of Abstraction is a photograph or painting, i.e., the object…

A: True the most concrete object on the Ladder of Abstraction is a photograph or painting, i.e., the…

Q: A man, 65 kg, descends to the ground with the help of a parachute, 18 kg. The parachute is…

A: given- mass of man m=65 kgparachute mass mp=18 kgdia=2 mdensity d=0.00125 g/cm3

Q: Air flows with a uniform velocity distribution in a pipe with the velocities measured along the…

A: Airflow is the development of air. The essential driver of wind stream is the presence of air. Air…

Q: The EGL and HGL of a system are shown below. Assume that the fluid is water and a = 1 in all…

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Q: 2. A 52 kg box, lying on the surface of a 15-degree inclined plane is pushed down the inclined…

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Q: Calculate the velocity V at B. A 4 m diameter V = 6 m/s 4 m/s C B 2 m diameter V=?

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Q: 30. Repeat Problem 29, but consider that the steel bar is fatened outside the bottom of the cup…

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Q: A thin film (1 mm) of a liq 10 m² plate from a smoot surface. If a force of 100 pull the plate at…

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Q: The velocity along the centreline of a nozzle of length L is given by 2 V = 2t| 1-. 2L where, V =…

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Q: Stokes’ Law Use Stoke’s law or apply drag coefficient for a sphere in creeping flow to find…

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Q: A water jet with a diameter of 10 cm and a speed of 20 m/s hits the cover AB, which makes an angle…

A: diameter of a jet d = 10 cm = 0.1 mvelocity of a jet v = 20 m/sAngle made by the cover AB = 30…

Q: 30

A: To determine the velocity of crate (v) -

Q: Determine the viscosity in poise of a liquid having kinematic viscosity of 6-stokes and specific…

A: Given  Kinematic viscosity  ν= 6 stokes  since 1 stoke= 10-4 m2/s  so Kinematics viscosity ν= 6 ×…

British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.