A fire extinguisher contains a high-pressure liquid so that it can spray the liquid out very...
A fire extinguisher contains a high-pressure liquid so that it can spray the liquid out very quickly when needed. If the fluid (density of 1100 kg/m^3) leaves a fire extinguisher at a speed of 17 m/s, what is the pressure inside?
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A fire extinguisher contains a high-pressure liquid so that it
can spray the liquid out very...
Problem 6.057 A spray system is shown in the diagram. Water is supplied at p, through...
Problem 6.057 A spray system is shown in the diagram. Water is supplied at p, through the flanged opening of area A 3 in.2 The water leaves in a steady free jet at atmospheric pressure. The jet area and speed are a 1.3 in.2 and V 16 ft/s. The mass of the spray system is 0.2 lbm and it contains 12 in.3 of water.An object, with a flat horizontal lower surface, moves downward into the jet of the spray system...
2. A can of RC cola has an unknown internal pressure. The can is 12.3 cm...
2. A can of RC cola has an unknown internal pressure. The can is 12.3 cm tall and sits on a table edge 1.10 m off the ground. A small hole at the bottom of the in the can causes a jet of cola to shoot out with the initial spray landing 8.29m from the can. kg Assume the density of cola is 1045 m3 a. Solve for the initial velocity of the cola stream leaving the can. (17.5 m/s)...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
A vaccination gun can force its contents through a small aperture a few thousanths of an...
A vaccination gun can force its contents through a small aperture a few thousanths of an inch in diameter at high pressures ( 550 psi) and so avoids using a hypodermic syringe and sticking the patient. Using Bernoulli's equation, how fast does the fluid leave such a gun? Take the density of the vaccine as 1100 kg/m^3 and assume the flow speed in the reservoir within the gun can be neglected. In contrast, using the equation of continuity, estimate how...
Problem #3 At very low Reynolds numbers a ball viscometer can be used to measure fluid...
Problem #3 At very low Reynolds numbers a ball viscometer can be used to measure fluid viscosity by dropping a spherical ball in the fluid and measuring its terminal velocity. Consider a solid ball of radius a = 1cm and density Ps = 2,500 kg/m falling in liquid glycerin with density P = 1,250 kg/m3. The measured terminal velocity of the ball is U = 0.15 m/s. Calculate the viscosity of the liquid.
A spray can containing a propellant gas at twice atmospheric pressure (202 kPa) and having a...
A spray can containing a propellant gas at twice atmospheric pressure (202 kPa) and having a volume of 119.00 cm is at 27°C. It is then tossed into an open fire. (Warning: Do not do this experiment; it is very dangerous.) When the temperature of the gas in the can reaches 195°C, what is the pressure inside the can? Assume any change in the volume of the can is negligible. SOLUTION Conceptualize Intuitively, you should expect that the pressure of the gas...
A fire department’s tanker truck can hold 10 m3 of water (10,000 L, or about 2500...
A fire department’s tanker truck can hold 10 m3 of water (10,000 L, or about 2500 gallons). When in use, the truck forces water through a hose and out of a 3.0-cm-diameter nozzle with a speed of 8.50 m/s. (a) Use Bernoulli’s equation to find the absolute pressure inside the tank. Assume the speed of the water inside the tank is zero. (b) How long will it take to empty the tank at this rate? Assume the pressure inside the...
015 A horizontal pipe contains water at a pressure of 110 kPa flowing with a speed...
015 A horizontal pipe contains water at a pressure of 110 kPa flowing with a speed of 1.6 m/s. The density of water is 1000 kg/m). Treat water as an ideal fluid. What is the pressure of water when the pipe narrows to one-half its the original diameter? 90.8 kPa 71.6 kPa 19.2 kPa 38.4 kPa According to US government regulations, the maximum sound intensity level in the workplace is 90.0 dB. Within one factory, 30 identical machines produce a...
A tank contains 500 kg of a liquid whose specufic gravity is 2. Determine the volume...
A tank contains 500 kg of a liquid whose specufic gravity is
2. Determine the volume of the liquid in the tank.
1.29 A tank contains 500 kg of a liquid whose specific gravity is 2. Determine the volume of the liquid in the tank. 130 Clouds can weigh thousands of pounds due to their liquid water content. Often this content is measured in grams per cubic meter g/m3.Assume that a cumulus cloud occupies a volume of one cubic kilometer,...
A high-quality potato cannon can fire a potato with a muzzle speed of 30.0 m/s. If...
A high-quality potato cannon can fire a potato with a muzzle speed of 30.0 m/s. If I am standing on the ground and fire this potato cannon at an angle of 50.0° above the horizontal, what is the potato's speed when it reaches a height equal to one-half of its eventual maximum height? O A 26.4 m/s O B.26.7 m/s OC. 25.2 m/s OD. 21.3 m/s O E.24.7 m/s Reset Selection
Problem 6.057 A spray system is shown in the diagram. Water is supplied at p, through the flanged opening of area A 3 in.2 The water leaves in a steady free jet at atmospheric pressure. The jet area and speed are a 1.3 in.2 and V 16 ft/s. The mass of the spray system is 0.2 lbm and it contains 12 in.3 of water.An object, with a flat horizontal lower surface, moves downward into the jet of the spray system...
2. A can of RC cola has an unknown internal pressure. The can is 12.3 cm tall and sits on a table edge 1.10 m off the ground. A small hole at the bottom of the in the can causes a jet of cola to shoot out with the initial spray landing 8.29m from the can. kg Assume the density of cola is 1045 m3 a. Solve for the initial velocity of the cola stream leaving the can. (17.5 m/s)...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
A vaccination gun can force its contents through a small aperture a few thousanths of an inch in diameter at high pressures ( 550 psi) and so avoids using a hypodermic syringe and sticking the patient. Using Bernoulli's equation, how fast does the fluid leave such a gun? Take the density of the vaccine as 1100 kg/m^3 and assume the flow speed in the reservoir within the gun can be neglected. In contrast, using the equation of continuity, estimate how...
Problem #3 At very low Reynolds numbers a ball viscometer can be used to measure fluid viscosity by dropping a spherical ball in the fluid and measuring its terminal velocity. Consider a solid ball of radius a = 1cm and density Ps = 2,500 kg/m falling in liquid glycerin with density P = 1,250 kg/m3. The measured terminal velocity of the ball is U = 0.15 m/s. Calculate the viscosity of the liquid.
A spray can containing a propellant gas at twice atmospheric pressure (202 kPa) and having a volume of 119.00 cm is at 27°C. It is then tossed into an open fire. (Warning: Do not do this experiment; it is very dangerous.) When the temperature of the gas in the can reaches 195°C, what is the pressure inside the can? Assume any change in the volume of the can is negligible. SOLUTION Conceptualize Intuitively, you should expect that the pressure of the gas...
015 A horizontal pipe contains water at a pressure of 110 kPa flowing with a speed of 1.6 m/s. The density of water is 1000 kg/m). Treat water as an ideal fluid. What is the pressure of water when the pipe narrows to one-half its the original diameter? 90.8 kPa 71.6 kPa 19.2 kPa 38.4 kPa According to US government regulations, the maximum sound intensity level in the workplace is 90.0 dB. Within one factory, 30 identical machines produce a...
A tank contains 500 kg of a liquid whose specufic gravity is
2. Determine the volume of the liquid in the tank.
1.29 A tank contains 500 kg of a liquid whose specific gravity is 2. Determine the volume of the liquid in the tank. 130 Clouds can weigh thousands of pounds due to their liquid water content. Often this content is measured in grams per cubic meter g/m3.Assume that a cumulus cloud occupies a volume of one cubic kilometer,...
A high-quality potato cannon can fire a potato with a muzzle speed of 30.0 m/s. If I am standing on the ground and fire this potato cannon at an angle of 50.0° above the horizontal, what is the potato's speed when it reaches a height equal to one-half of its eventual maximum height? O A 26.4 m/s O B.26.7 m/s OC. 25.2 m/s OD. 21.3 m/s O E.24.7 m/s Reset Selection
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