0. 31 The work done in blowing a soap bubble from radius (r) to (2r) is : (а) 4ar'T (b) 12ar T (c) 8trT (d) 24 trT

Q: Example 4 A bag of wheat weighs 100 kg. To what height should it be raised so that its potential…

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Q: A spherical tank of diameter 6 m is full of water. Set-up the integral for the work done in pumping…

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Q: what is the difference between quasi static and quasi static work done by pressure?

A: First we need to known the thermodynamic equilibrium, Coexisting of thermal equilibrium, chemical…

Q: While the pressure remains constant at 689.5 kPa the volume of a system of air changes from 0.567 m³…

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Q: Consider these scenarios and state whether work is done by the system on the environment (SE) or by…

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Q: In a hydroelectric power plant, 65 m3/s of water flows from an elevation of 90 m to a turbine, where…

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Q: At typical nuclear power plants, refueling occurs every 17 months. Assuming that a plant has…

A: the efficiency of the power plant is 25% or 0.25.the energy required to produce the projected energy…

Q: A student is moving out He doce 16x 104 J in the process, Determine and (c) Q. a dormitory at the…

A: Given:-  A student is moving out of a dormitory at the end of the semester. He does a 1.6 x 104 J of…

Q: (II) Energy may be stored by pumping water to a high reservoir when demand is low and then releasing…

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Q: A 150 Hb.- ball initially on the top of a 20ft ladder is d ropped and hits the ground.With re…

A: Given : Mass of ball = 150 lb Initial Velocity of ball = 0 ft/s Initial height of ball =  20 ft

Q: A spherical tank of diameter 4 m is half-full of water (weight density = 9800 N/m³). Setup the…

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Q: A geothermal pump is used to pump brine whose density is 1050 kg/m3 at a rate of 0.3 m3/s from a…

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Q: The work done in blowing a soap bubble from radius (r) to (2r) is : 12πr²T 24 лr²T (a) 4πr²T (c)…

A: To find-Work done=?Given-Initial radius (r1)=rFinal radius (r2)=2r

Q: Why do we not use brakes with more than 80% efficiency in automobiles? What should be the minimum…

A: we do not use brakes with more than 80% efficiency in automobiles

Q: In the figure, a 3.2 g ice flake is released from the edge of a hemispherical bowl whose radius ris…

A: Mass, m = 3.2 g Radius, r = h = 19 cm = 0.19 m Initial speed, vi = 0.51 m/s

Q: in 2021, the tallest building in the world, the Burg Khalifa, klas estimated at $1.5 billion.…

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Q: At a certain location, wind is blowing steadily at 7 m/s. Determine the mechanical energy of air per…

A: The specific energy of the wind is, em=v22     =7.0 m·s-122     =24.5 J·kg-1 The mechanical energy…

Q: Let W = (2.70 ✕ 105 J) ln(Vf /Vi). Solve for the unknown quantity in each of the following cases:…

A: Given, W =(2.70×105 J)lnVfViwe are asked to calculate (a)the work done, given, the final volumeVf is…

Q: b) Energy may be stored for use during peak demand by pumping water to a high reserveir when needed.…

A: Given: The height is h=135 m. The time is t=10 h. The rate is r=1.35X105 kg/s. Part (i) The…

Q: Critically ill patients in a cardiovascular intensive care unit must be intensely monitored for any…

A: (a)strokevolume calculation:stroke volume(sv)is the amount ofblood pumped by the leftventricle of…

Q: An asteroid made out of iron (7860 kg/m3) strikes the Earth in an area where the oceans are very…

A: Given data: The density of asteroid is ρ=7860 kg/m3. The speed of asteroid is v=30 km/s. The…

Q: a nemispherical bowl whóšé rádiu. ches the bottom of the bowl? (b) If the flake an initial downward…

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Q: The lower the mechanical efficiency, the more work is being done by non-conservative forces -…

A: Given The lower the mechanical efficiency, the more work is being done by non-conservative forces -…