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1) Consider particles characterized with a density of 1.5 g/cm3. At 250C and 1 atm determine...
2. Comparing sedimentation and flotation um spherical floc particles with a density of 1.15 g/cm3 pm...
2. Comparing sedimentation and flotation um spherical floc particles with a density of 1.15 g/cm3 pm spherical floc particles with a density of 1.15 g/cm Calculate the settling velocity of 12 in summer (T-20°C) and in winter (T 4°C). Calculate the rise velocity of the same floc particle after the attachment of a single air bubble of 40 um diameter for the same two temperatures. The density of air is 1.27 kg/m3 at 4°C and 1.19 kg/m3 at 20°C Comment...
Compute the terminal settling velocity in air of a sphere with density of 1,000 kg/m3. The...
Compute the terminal settling velocity in air of a sphere with density of 1,000 kg/m3. The sphere with a diameter of 10 μm falls through standard air (25 °C and 1 Atm).
Determine the settling velocity (m/s) of a sand particle with a density of 2.6 g/cm3 and...
Determine the settling velocity (m/s) of a sand particle with a density of 2.6 g/cm3 and 1 mm diameter. νw = 1.307x10-6 m2/s and ρw = 998 kg/m3.
A stainless steel ball (radius rsphere = 0.3175 cm, density ρsphere = 7.866 g/cm3) falls through...
A stainless steel ball (radius rsphere = 0.3175 cm, density ρsphere = 7.866 g/cm3) falls through a viscous fluid (density ρfluid = 1.2 g/cm3) and quickly reaches terminal speed v. You measure the ball’s position as a function of time to find v. The ball is at positions y = 10 cm at time 2.402 and at position y = 5 cm at time 3.26. Calculate the viscosity η of the fluid in units of poise = g/(cm-s), using your...
Required information Air at 25°C and 1 atm is flowing over a long flat plate with...
Required information Air at 25°C and 1 atm is flowing over a long flat plate with a velocity of 7 m/s. The density and kinematic viscosity of air at 1 atm and 25°C are p= 1.184 kg/m3 and V = 1.562x10-5 m2/s. Calculate the distance from the leading edge of the plate where the flow becomes turbulent. The distance from the leading edge of the plate is m. Required information Air at 25°C and 1 atm is flowing over a...
non-absorbing particles suspended in air and exposed to daytime radiation have a homogeneous size of 1...
non-absorbing particles suspended in air and exposed to daytime radiation have a homogeneous size of 1 μm in diameter with a refractive index of 1.33. The density of the particle is 1.5 g/cm3. The wavelength of light is taken to be 500 nm. What is the concentration in μg/m3 which results in a limit of visibility of 1.5 km?
1. Express the answer to the following problems using the correct number of significant figures a....
1. Express the answer to the following problems using the correct number of significant figures a. 1.144 x 10 20.0 b. 4.77 x 101 -9.16 x 10 2. Express the Boltzmann constant (1.38065 x 102" kg m's K') in units of miles' lb yrK 3. Convert 9.997 x 101 g cm* into kg km 4. The Reynolds number is used to deseribe the conditions of particle settling If the Reynolds number is given by the following equation Where v, is...
2) Consider a setling chamber to treat a particulate ladened air stream having a volumetric flow...
2) Consider a setling chamber to treat a particulate ladened air stream having a volumetric flow rate of 1 m'/s. Design a settling chamber to collect particles 10 um in diameter having a density of 1700 kg/m3. The chamber is to be 1.5 m in width and 1.5 m in height. A) How long must the settling chamber be to give a theoretical perfect collection efficiency? B) Using the length determined (in part a), determine the collection efficiency for 5...
N9M.2 and N9B.8 the ground WI time will pass before it returns to he g resistance.) 85 N9B.7 Estimate the terminal speed for a ping-pong bal so whose diameter is 1.5 in. and whose mass is 2.5 g....
N9M.2 and N9B.8
the ground WI time will pass before it returns to he g resistance.) 85 N9B.7 Estimate the terminal speed for a ping-pong bal so whose diameter is 1.5 in. and whose mass is 2.5 g. (For P a sphere, C is roughly 0.5.) N9B.8 A person's terminal speed in air is typically about 60 m/s. If so, what is the value for CA for a falling person? (Assume that m 60 kg.) N9 Modeling N9M.1 Estimate the...
1: Consider a string with 36.2 g mass and 39.6 cm length. Determine the linear density...
1: Consider a string with 36.2 g mass and 39.6 cm length. Determine the linear density of the string (in kg/m unit). 2: Consider a string with 26.6 g mass and 90 cm length. If the tension in the string is 1.2 N, then determine the speed of the generated standing waves.
2. Comparing sedimentation and flotation um spherical floc particles with a density of 1.15 g/cm3 pm spherical floc particles with a density of 1.15 g/cm Calculate the settling velocity of 12 in summer (T-20°C) and in winter (T 4°C). Calculate the rise velocity of the same floc particle after the attachment of a single air bubble of 40 um diameter for the same two temperatures. The density of air is 1.27 kg/m3 at 4°C and 1.19 kg/m3 at 20°C Comment...
Required information Air at 25°C and 1 atm is flowing over a long flat plate with a velocity of 7 m/s. The density and kinematic viscosity of air at 1 atm and 25°C are p= 1.184 kg/m3 and V = 1.562x10-5 m2/s. Calculate the distance from the leading edge of the plate where the flow becomes turbulent. The distance from the leading edge of the plate is m. Required information Air at 25°C and 1 atm is flowing over a...
1. Express the answer to the following problems using the correct number of significant figures a. 1.144 x 10 20.0 b. 4.77 x 101 -9.16 x 10 2. Express the Boltzmann constant (1.38065 x 102" kg m's K') in units of miles' lb yrK 3. Convert 9.997 x 101 g cm* into kg km 4. The Reynolds number is used to deseribe the conditions of particle settling If the Reynolds number is given by the following equation Where v, is...
2) Consider a setling chamber to treat a particulate ladened air stream having a volumetric flow rate of 1 m'/s. Design a settling chamber to collect particles 10 um in diameter having a density of 1700 kg/m3. The chamber is to be 1.5 m in width and 1.5 m in height. A) How long must the settling chamber be to give a theoretical perfect collection efficiency? B) Using the length determined (in part a), determine the collection efficiency for 5...
N9M.2 and N9B.8
the ground WI time will pass before it returns to he g resistance.) 85 N9B.7 Estimate the terminal speed for a ping-pong bal so whose diameter is 1.5 in. and whose mass is 2.5 g. (For P a sphere, C is roughly 0.5.) N9B.8 A person's terminal speed in air is typically about 60 m/s. If so, what is the value for CA for a falling person? (Assume that m 60 kg.) N9 Modeling N9M.1 Estimate the...
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