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1. What does it mean, if the specific gravity of an object is greater than one?
2. What does it mean, if the specific gravity of an object is equal to one?
1. If you change the mass and volume does the density of a fluid changes?
2. What does it mean, if the specific gravity of an object is less than one?
1. What is the density of water at 4°C?
2. Does the water density change?
3. What is the density of Gold?
4. Does the Gold density change?
Water is flowing in a fire hose with a velocity of 1.0 m/s and a pressure of 200000 Pa. At the nozzle the pressure decreases to atmospheric pressure (101300 Pa), there is no change in height. Use the Bernoulli equation to calculate the velocity of the water exiting the nozzle. (Hint: The density of water is 1000 kg/m³ and gravity g is 9.8 m/s². Pay attention to units!)
Eq(1) represents the governing stream function Y(r,0), of the developed novel amine solvent in a packed column {vrºsin’e (1-9) Eq(1) y = - The velocity components in r (vr) and 0 is shown in Eq (2) and Eq (3), respectively 1 dy Vr. Eq(2) r2 sino de Ve= 1 dy r sind dr Eq(3) Where: v2 = v? + va Eq(4) r: radius of the packaging material (cm) Ø: correction factor of the packing material (cm) V : upstream velocity (cm s-?) 0 : angle of the flow (downward vertical direction) Your specific task for this project are as follows: a) Analyze the relation between radial velocity distribution with the upstream velocity [ 4 marks] downward vertical velocity distribution with the b) Analyze the relation between upstream velocity [ 5 marks] c) Determine the downward vertical pressure changes with the upstream velocity [ 11 marks] ** Process assumption: Incompressible and steady flow Inviscid flow condition Changes in the potential energy, shaft work and the loss of useful energy are relatively small than kinetic and pressure energy. Uniform velocity distribution in both r and 0 direction
The relation between local radial pressure gradient, with packaging material and liquid dr properties is represented in Eq (1) dp Фр аз dr pvz 1-a 150u(1-a) 1.75y + ρνοΦΡ Eq(1) Where : Pp: packing material properties diameter (m) a: fraction void (dimensionless) y: correction factor (dimensionless)=0.2 p: liquid solvent density (kgm?) u: amine liquid viscocity (Pa.s) Characteristics of the proprietary packing considered in this project and the simplified stream pilot plant data can be obtained in Table 1 and Table 2 respectively. Size Packing EnviPaerings VSprings Material Plastics Metal 80 mm. no 3 25 mm, no. 1 0.050 0.055 (m) 0.065 0.015 Table 1: Characteristics of the proprietary packing considered in this project (Wankat, 2011) Liquid phase 0.03 Process parameters Volume flow rate (m's!) Column inner radius (m) Column outer radius (m) Viscosity (Pa.s) Density (kg/m) Column length (m) 0.08 8 0.101 250 0.1 Table 2: Simplified stream data obtained from the pilot plant Your specific task for this project are as follows: a) Analyze the radial pressure drop (in bar) across the proprietary packing considered in this project based on the data in Table 1 and Table 2 [30 marks] ** Process assumption: Incompressible and steady flow condition Column cross sectional area : 2nrl The solvent moves towards to inlet radius (from outer radius)
aa projectile is launched at initial velocity of 12m/s and angle of 27 degree. (a) what is the maximum height reached by the projectile? (b) what is the time taken by the projectile? show your solution.
a ball is thrown from the top of 10m high building with horizontal speed of 5m/s. (a) calculate the time it takes to drop to the floor, (b) its horizontal displacement at the point when it reaches the floor
Transverse waves with a speed of 50.0 m/s are to be produced on a stretched string having a
tension of 30.0 N. If this string has a total mass of 0.060 kg, (a) what is the total length of this
string? (b) How many times will the speed increases when the tension of the string is increased
three times?
An amusement park ride consists of a rotating circular platform 10.8 m in diameter from which 10 kg seats are suspended at the end of 2.85 m massless chains. When the system rotates, the chains make an angle of 38.2 ◦ with the vertical. The acceleration of gravity is 9.8 m/s 2 . θ l d What is the speed of each seat? Answer in units of m/s. 012 (part 2 of 2) 10.0 points If a child of mass 36.8 kg sits in a seat, what is the tension in the chain (for the same angle)? Answer in units of N.
