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Owners of a recreation area are filling a small pond with water. They are adding water...
A small pond initially contains 2,000 litres of fresh water. Polluted water flows in at a...
A small pond initially contains 2,000 litres of fresh water. Polluted water flows in at a rate of 5 litres per hour. Water fows out of the pond at the same rate. The concentration of pollutant in the inflow, c(t), is given by c(t) = 2 +5e-* grams per litre. Originally there is no pollutant in the pond. Which of the following differential equation models describes the total mass Q of pollutant in the pond over time? dQ dt 10...
Consider a small amount of water (0.001 kg) in a vertical piston-cylinder arrangement. The piston has a mass such that a...
Consider a small amount of
water (0.001 kg) in a vertical piston-cylinder arrangement. The
piston has a mass such that at state 1 the pressure on the water is
125 kPa and its temperature is 10°C. Heat is added at constant
pressure until vaporization begins at state 2 and the piston hits a
set of stops when the volume is 0.2758 liters at state 3. Heat is
added from that point at constant volume until the water is
completely vapor...
A Water Tank Problem with Discontinuous Source A water tank contains V, > 0 liters of...
A Water Tank Problem with Discontinuous Source A water tank contains V, > 0 liters of pure water and Qo grams of salt. At time t = 0 we start pouring water into the tank with a rate r > 0 liters per minute with a salt concentration of q> 0 grams per litter, and we let the well-stirred water leave the tank at the same rate. After T > 0 minutes the process is stopped and fresh water is...
A very dilute gas mixture of sulfur dioxide in air is contacted with water in a...
A very dilute gas mixture of sulfur dioxide in air is contacted with water in a 25 mm ID wetted wall column at 293K and 1 atm. The velocity of the gas mixture is 2.2 m/s. Estimate the Reynolds number of the gas mixture ans: 5.3 x105 A tank is being drained through a hole at the bottom. The volume remaining in the tank at a given time is defined by the equation: V = 5(100 – t)2, where V...
problem 1) Find the differential equation describing the amount of salt,Qb, in the tank for times...
problem 1) Find the differential equation describing the
amount of salt,Qb, in the tank for times t in the interval t>=T.
Then solve to obtain Qb(t) for t>= T
A Water Tank Problem with Discontinuous Source A water tank contains V > 0 liters of pure water and Qo grams of salt. At time t = 0 we start pouring water into the tank with a rate r >0 liters per minute with a salt concentration of q> 0 grams...
2. (10 points) An aquarium has a 1000 L tank containing 400 L of salt water with a concentra- tio...
2. (10 points) An aquarium has a 1000 L tank containing 400 L of salt water with a concentra- tion of 210 grams per liter. A salt water solution with a concentration of 470 grams per liter is pumped into the tank at a rate of 5 liters per minute. The well-mixed solution is drained from the tank at a rate of 3 liters per minute. Additionally, the tank is uncovered, so fresh water evaporates from the tank at a...
please answer all questions Camoative Box Office Revease 6mille) Movie Box Office Comparison PARTI: Modelling a...
please answer all questions
Camoative Box Office Revease 6mille) Movie Box Office Comparison PARTI: Modelling a curve 800 It is not easy to determine the best mathematical model for real data. In many situations, one model works best for a limited period of time, and then another model is better. Let x represent the time, in weeks, and let y represent the cumulative box office revenue, in millions of dollars. 700 600 500 400 Avater Ttenic 300 200 Derk Knight...
VANUIT IJS d lauluduLIVE TUI Of the element Darum that decays very rapidly. It is easy...
VANUIT IJS d lauluduLIVE TUI Of the element Darum that decays very rapidly. It is easy and safe to use for lab experiments in schools and colleges. In a typical experiment, the radioactivity of a sample of barium-137m is measured for one minute. It is then measured for three additional one-minute periods, separated by two minutes. So data are recorded at 1, 3, 5, and 7 minutes after the start of the first counting period. The measurement units are counts....
Water at 50 °F is pumped from pond 1 to pond 2. Calculate the volumetric flow...
Water at 50 °F is pumped from pond 1 to pond 2. Calculate the volumetric flow rate and pump power for the following given information Patm h Opump Patm ... Total pipe length: /=500 ft Pipe diameter: d=8 in Pipe material: new cast iron Elbow type: flanged, 90° regular Valve type: globe, flanged, fully open Inlet and Exit type: sudden, Fig. 6.22 Pump head: hp 250 ft Pump efficiency: np=0.85 h-200 ft F (velocity, ft/s x diameter. (Vd) for water...
12 If white anhydrous copper(II) sulfate powder is left in the atmosphere it slowly absorbs water...
12 If white anhydrous copper(II) sulfate powder is left in the atmosphere it slowly absorbs water vapour giving the blue pentahydrated solid. Cuso (s) + SH,O(1) CuSO, SH,O(s) (anhydrous) (pentahydrated) It is difficult to measure the enthalpy change for this reaction directly. However, it is possible to measure the heat changes directly when both anhydrous and pentahydrated copper(II) sulfate are separately dissolved in water, and then use an energy cycle to determine the required enthalpy change value, AH,, indirectly. AH...
A small pond initially contains 2,000 litres of fresh water. Polluted water flows in at a rate of 5 litres per hour. Water fows out of the pond at the same rate. The concentration of pollutant in the inflow, c(t), is given by c(t) = 2 +5e-* grams per litre. Originally there is no pollutant in the pond. Which of the following differential equation models describes the total mass Q of pollutant in the pond over time? dQ dt 10...
Consider a small amount of
water (0.001 kg) in a vertical piston-cylinder arrangement. The
piston has a mass such that at state 1 the pressure on the water is
125 kPa and its temperature is 10°C. Heat is added at constant
pressure until vaporization begins at state 2 and the piston hits a
set of stops when the volume is 0.2758 liters at state 3. Heat is
added from that point at constant volume until the water is
completely vapor...
A Water Tank Problem with Discontinuous Source A water tank contains V, > 0 liters of pure water and Qo grams of salt. At time t = 0 we start pouring water into the tank with a rate r > 0 liters per minute with a salt concentration of q> 0 grams per litter, and we let the well-stirred water leave the tank at the same rate. After T > 0 minutes the process is stopped and fresh water is...
problem 1) Find the differential equation describing the
amount of salt,Qb, in the tank for times t in the interval t>=T.
Then solve to obtain Qb(t) for t>= T
A Water Tank Problem with Discontinuous Source A water tank contains V > 0 liters of pure water and Qo grams of salt. At time t = 0 we start pouring water into the tank with a rate r >0 liters per minute with a salt concentration of q> 0 grams...
2. (10 points) An aquarium has a 1000 L tank containing 400 L of salt water with a concentra- tion of 210 grams per liter. A salt water solution with a concentration of 470 grams per liter is pumped into the tank at a rate of 5 liters per minute. The well-mixed solution is drained from the tank at a rate of 3 liters per minute. Additionally, the tank is uncovered, so fresh water evaporates from the tank at a...
please answer all questions
Camoative Box Office Revease 6mille) Movie Box Office Comparison PARTI: Modelling a curve 800 It is not easy to determine the best mathematical model for real data. In many situations, one model works best for a limited period of time, and then another model is better. Let x represent the time, in weeks, and let y represent the cumulative box office revenue, in millions of dollars. 700 600 500 400 Avater Ttenic 300 200 Derk Knight...
VANUIT IJS d lauluduLIVE TUI Of the element Darum that decays very rapidly. It is easy and safe to use for lab experiments in schools and colleges. In a typical experiment, the radioactivity of a sample of barium-137m is measured for one minute. It is then measured for three additional one-minute periods, separated by two minutes. So data are recorded at 1, 3, 5, and 7 minutes after the start of the first counting period. The measurement units are counts....
Water at 50 °F is pumped from pond 1 to pond 2. Calculate the volumetric flow rate and pump power for the following given information Patm h Opump Patm ... Total pipe length: /=500 ft Pipe diameter: d=8 in Pipe material: new cast iron Elbow type: flanged, 90° regular Valve type: globe, flanged, fully open Inlet and Exit type: sudden, Fig. 6.22 Pump head: hp 250 ft Pump efficiency: np=0.85 h-200 ft F (velocity, ft/s x diameter. (Vd) for water...
12 If white anhydrous copper(II) sulfate powder is left in the atmosphere it slowly absorbs water vapour giving the blue pentahydrated solid. Cuso (s) + SH,O(1) CuSO, SH,O(s) (anhydrous) (pentahydrated) It is difficult to measure the enthalpy change for this reaction directly. However, it is possible to measure the heat changes directly when both anhydrous and pentahydrated copper(II) sulfate are separately dissolved in water, and then use an energy cycle to determine the required enthalpy change value, AH,, indirectly. AH...
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