3. We learned that a column of mercury in a barometer is around 760 mm in...
3. We learned that a column of mercury in a barometer is around 760 mm in height. We also learned that a water barometer would have to be over 10 m tall. What would be the height of a column of isopropyl alcohol if it were used in a barometer? The density of isopropyl alcohol 785 kg/m3.
Homework Answers
Find the pressure in Pascal and use that to find the height of
alcohol using its density as shown below
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3. We learned that a column of mercury in a barometer is around
760 mm in...
please answer #3 and be careful of sig figs wheel to stop? 2. A meterstick weighing...
please answer #3 and be careful of sig figs
wheel to stop? 2. A meterstick weighing 1.2 N is supported horizontally by two fulcra positioned at x1 = 30 cm and x2 = 90 cm. Assume that the stick's center of gravity is at its exact center (i.e., Xcg = 50 cm). Draw a diagram of the three forces acting on the meterstick. What are the magnitudes of the upward forces exerted by the two fulcra on the stick? 3....
The column of mercury in a barometer stands 70.0cm high. How tall would the barometer have...
The column of mercury in a barometer stands 70.0cm high. How tall would the barometer have to be if the mercury were replaced by water? (the density of mercury is 1.36x10^4kg/m^3)
A mercury barometer reads 745 mm on the roof of a building and 763 mm on...
A mercury barometer reads 745 mm on the roof of a building and 763 mm on the ground. Assuming a constant value of 1.29 kg/m3 for the density of air, determine the height of the building
mercury barometer reads 745 mm on the roof of a building and 763 mm on the...
mercury barometer reads 745 mm on the roof of a building and 763 mm on the ground. Assuming a constant value of 1.29 kg/m3 for the density of air, determine the height of the building.
A mercury barometer reads 744 mm on the roof of a building and 761 mm on...
A mercury barometer reads 744 mm on the roof of a building and 761 mm on the ground. Assuming a constant value of 1.29 kg/m3 for the density of air, determine the height of the building.
The column of a mercury barometer is calibrated in linear units (such as inches or millimeters)...
The column of a mercury barometer is calibrated in linear units
(such as inches or millimeters) and thus the air pressure observed
on such a barometer is reported in terms of these linear units.
This measurement of pressure can be converted to other common
pressure units. Some conversion factors are shown here.
1mm Hg = 1torr
1 atm = 760mm Hg
1 atm = 1.01325 bar
1 Pa = 10-5 bar
1 in = 2.54 cm
1 cm = 10...
(a) How high in meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury?
(a) How high in meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury? The density of water is 1.0 g/mL whereas that of mercury is 13.6 g/mL (b) What is the pressure, in atmospheres, on the body of a diver if he or she is 39 ft below the surface of the water when atmospheric pressure at the surface is 0.97 atm?
In principle many different liquids could be used in a barometer. Mercury is usually preferred by...
In principle many different liquids could be used in a barometer. Mercury is usually preferred by virtue of its low vapour pressure and high density. As part of a school project, you have decided to build a barometer using water. Assuming the maximum pressure that the instrument will need to read is 1.05 atm, determine the height of the column required if (a) you ignore the vapour pressure of water or (b) you take the vapour pressure of water (PH2O=3.17...
You wish to observe the progress of your vacuum pump in evacuating a tall bell jar...
You wish to observe the progress of your vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that sound waves do not travel in a vacuum. So you place a mercury barometer inside the bell jar and follow the height of the mercury column as the pump chugs away. When you observe a height of 5.67 mm, what fraction of atmospheric pressure, expressed as a percentage, have you achieved in your bell jar? The density of...
8. Show that the pressure due to 760 mm of mercury (Hg) is equal to 101kN/m²....
8. Show that the pressure due to 760 mm of mercury (Hg) is equal to 101kN/m². The specific gravity of Hg is 13.6. (4) 10 Determine the absolute pressure at a depth of 20 ft below the free surface of a body of water (Assume density of water is 62.4 lbm/ft) (4) ha
please answer #3 and be careful of sig figs
wheel to stop? 2. A meterstick weighing 1.2 N is supported horizontally by two fulcra positioned at x1 = 30 cm and x2 = 90 cm. Assume that the stick's center of gravity is at its exact center (i.e., Xcg = 50 cm). Draw a diagram of the three forces acting on the meterstick. What are the magnitudes of the upward forces exerted by the two fulcra on the stick? 3....
The column of a mercury barometer is calibrated in linear units
(such as inches or millimeters) and thus the air pressure observed
on such a barometer is reported in terms of these linear units.
This measurement of pressure can be converted to other common
pressure units. Some conversion factors are shown here.
1mm Hg = 1torr
1 atm = 760mm Hg
1 atm = 1.01325 bar
1 Pa = 10-5 bar
1 in = 2.54 cm
1 cm = 10...
8. Show that the pressure due to 760 mm of mercury (Hg) is equal to 101kN/m². The specific gravity of Hg is 13.6. (4) 10 Determine the absolute pressure at a depth of 20 ft below the free surface of a body of water (Assume density of water is 62.4 lbm/ft) (4) ha
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