Water is relatively less denser hence the length of column of water would have to be a bout 34 feet high to exert pressure equal to that of the atmosphere.
HOSEA KIPYEGON answered the question on June 28, 2018 at 08:14
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The mass of the density bottle when filled with a liquid of density 3000 kg per metre cube is 400 grams and the mass of...
(Solved)
The mass of the density bottle when filled with a liquid of density 3000 kg per metre cube is 400 grams and the mass of the bottle when filled with water is 200 grams. What is the mass of the empty density bottle?
Date posted:
June 26, 2018
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Answers (1)
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A battery is rated 120 AH. How long will it work if it steadily supplies a current of 4A
(Solved)
A battery is rated 120 AH. How long will it work if it steadily supplies a current of 4A.
Date posted:
June 20, 2018
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Answers (1)
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In a hydraulic piston, a force of 200N is applied to a master piston of area 25cm squared. If the press is designed to produce...
(Solved)
In a hydraulic piston, a force of 200N is applied to a master piston of area 25cm squared. If the press is designed to produce a force of 5000N determine the area of the slave piston.
Date posted:
June 16, 2018
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Answers (1)
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A car of mass 1200kg moving at 90km/h is brought to rest over a distance of 20m. Calculate the breaking force.
(Solved)
A car of mass 1200kg moving at 90km/h is brought to rest over a distance of 20m. Calculate the breaking force.
Date posted:
June 5, 2018
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Answers (1)
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For a body moving with a constant acceleration, a,show that v=u+at where v and u are the final and initial velocities respectively while t is...
(Solved)
For a body moving with a constant acceleration, a,show that v=u+at where v and u are the final and initial velocities respectively while t is the time taken
Date posted:
June 5, 2018
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Answers (1)
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State two advantages of a thermocouple over a mercury in glass thermometer
(Solved)
State two advantages of a thermocouple over a mercury in glass thermometer
Date posted:
May 23, 2018
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Answers (1)
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Give a reason why water wets glass while mercury does not
(Solved)
Give a reason why water wets glass while mercury does not
Date posted:
May 19, 2018
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Answers (1)
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Describe how to fit an iron tyre in a wheel of a train
(Solved)
Describe how to fit an iron tyre in a wheel of a train.
Date posted:
May 10, 2018
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Answers (1)
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Describe how you can measure the diameter of a tennis ball
(Solved)
Describe how you can measure the diameter of a tennis ball.
Date posted:
May 10, 2018
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Answers (1)
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List applications of expansion in gases
(Solved)
List applications of expansion in gases.
Date posted:
April 28, 2018
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Answers (1)
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A stop watch started 0.50 sec after the start button was pressed. The time recorded using the stopwatch for a ball bearing failing through a...
(Solved)
A stop watch started 0.50 sec after the start button was pressed. The time recorded using the stopwatch for a ball bearing failing through a liquid was 2.53 sec. Determine the time of fail?
Date posted:
April 26, 2018
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Answers (1)
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50 drops of oil have a volume of 1.0 cubic cm. If a drop of oil forms an oil patch of diameter 20cm, determine...
(Solved)
50 drops of oil have a volume of 1.0 cubic cm. If a drop of oil forms an oil patch of diameter 20cm, determine the size of the oil molecule.
Date posted:
April 25, 2018
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Answers (1)
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The water level in a burette is 27 cm³. If 88 drops of the bottle and the average volume of drop is 0.25cm³.What is the...
(Solved)
The water level in a burette is 27 cm³. If 88 drops of the bottle and the average volume of drop is 0.25cm³.What is the final water level in the burette?
Date posted:
April 25, 2018
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Answers (1)
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Describe an experiment to find the density of a solid using a density bottle
(Solved)
Describe an experiment to find the density of a solid using a density bottle
Date posted:
April 25, 2018
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Answers (1)
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State two ways of increasing pressure in solids
(Solved)
State two ways of increasing pressure in solids.
Date posted:
April 25, 2018
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Answers (1)
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Explain why ventilations are put near the roof but not near the floor
(Solved)
Explain why ventilations are put near the roof but not near the floor
Date posted:
April 24, 2018
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Answers (1)
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A butcher has a beam balance and masses 0.8 kg and 3 kg. How would he measure 2.2 kg of meat on the balance at once?
(Solved)
A butcher has a beam balance and masses 0.8 kg and 3 kg. How would he measure 2.2 kg of meat on the balance at once?
Date posted:
April 24, 2018
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Answers (1)
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A car battery has 12V. 8 dry cells are equal to 12V. Explain why 8 dry cells are not able to start a car?
(Solved)
A car battery has 12V. 8 dry cells are equal to 12V. Explain why 8 dry cells are not able to start a car?
Date posted:
April 24, 2018
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Answers (1)
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Given that a kg of copper contains 10^25 atoms and that density of copper is about 9000kg/m^3,estimate the diameter of the copper atom
(Solved)
Given that a kg of copper contains 10^25 atoms and that density of copper is about 9000kg/m^3,estimate the diameter of the copper atom
Date posted:
April 23, 2018
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Answers (1)
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A student observed that in the morning that overhead electrical cable is straight? Explain this observation
(Solved)
A student observed that in the morning that overhead electrical cable is straight? Explain this observation.
Date posted:
April 23, 2018
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Answers (1)