A molecule deep in the liquid is surrounded by liquid on all sides so that the net force on it is zero. A molecule on the surface has fewer molecules on the vapour side and therefore will experience a resultant inward force, causing the surface of the liquid to be in tension.
Wilfykil answered the question on April 15, 2019 at 06:09
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List the factors affecting gravitational force
(Solved)
List the factors affecting gravitational force
Date posted:
April 15, 2019
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Answers (1)
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A mixture consists of 40cm3 of water and 60cm3 of liquid X. If the densities of water and liquid X are 1.0g/cm3 and 0.8g/cm3 respectively,...
(Solved)
A mixture consists of 40cm3 of water and 60cm3 of liquid X. If the densities of water and liquid X are 1.0g/cm3 and 0.8g/cm3 respectively, calculate the density of the mixture.
Date posted:
April 15, 2019
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Answers (1)
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The mass of a density bottle is 20.0g when empty, 70.0g when full of water and 55.0g when full of a second liquid x. Calculate...
(Solved)
The mass of a density bottle is 20.0g when empty, 70.0g when full of water and 55.0g when full of a second liquid x. Calculate the density of the liquid (take density of water to be 1g/cm3)
Date posted:
April 15, 2019
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Answers (1)
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A wooden block of mass 200g is 4.0 cm wide 3.0 cm thick and 6.0 cm long. Calculate the density of the wooden block in...
(Solved)
A wooden block of mass 200g is 4.0 cm wide 3.0 cm thick and 6.0 cm long. Calculate the density of the wooden block in kg/m3
Date posted:
April 15, 2019
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Answers (1)
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What are the advantages of Electrical Balance (Top Pan Balance) Over the Beam Balance (Mechanical Type)?
(Solved)
What are the advantages of Electrical Balance (Top Pan Balance) Over the Beam Balance (Mechanical Type)?
Date posted:
April 15, 2019
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Answers (1)
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State the conditions under which displacement method works
(Solved)
State the conditions under which displacement method works
Date posted:
April 15, 2019
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Answers (1)
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Find the volume of a sphere whose radius is 3.0cm
(Solved)
Find the volume of a sphere whose radius is 3.0cm
Date posted:
April 15, 2019
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Answers (1)
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Estimate the area of the irregular surface shown in the figure below by counting the small squares. The area of one complete square is 1cm2
(Solved)
Estimate the area of the irregular surface shown in the figure below by counting the small squares. The area of one complete square is 1cm2
Date posted:
April 15, 2019
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Answers (1)
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In an experiment to estimate the height of a tree in Nyabururu Girls’ Secondary School compound, Grace recorded the following data.
(Solved)
In an experiment to estimate the height of a tree in Nyabururu Girls’ Secondary School compound, Grace recorded the following data.
I. Length of shadow of the tree= 1000cm
II. Length of shadow of the rod = 200cm
III. Height of the rod = 100cm
Determine the height of the tree
Date posted:
April 15, 2019
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Answers (1)
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Give the sources of Error When Using a Meter Rule
(Solved)
Give the sources of Error When Using a Meter Rule
Date posted:
April 15, 2019
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Answers (1)
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Which factors are Considered When Choosing an Instrument for Measuring Lengths?
(Solved)
Which factors are Considered When Choosing an Instrument for Measuring Lengths?
Date posted:
April 15, 2019
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Answers (1)
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Give reasons for Establishing SI Units?
(Solved)
Give reasons for Establishing SI Units?
Date posted:
April 13, 2019
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Answers (1)
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Show the relationship between Physics, Other Subjects and Technology
(Solved)
Show the relationship between Physics, Other Subjects and Technology
Date posted:
April 13, 2019
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Answers (1)
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What does the study of physics entail?
(Solved)
What does the study of physics entail?
Date posted:
April 13, 2019
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Answers (1)
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What is the definition of Physics?
(Solved)
What is the definition of Physics?
Date posted:
April 13, 2019
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Answers (1)
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An object is placed (a) 18cm and (b) 4cm in front of a concave mirror of focal length 12cm. Determine the position and nature of the...
(Solved)
An object is placed
a) 18cm and
b) 4cm in front of a concave mirror of focal length 12cm.
Determine the position and nature of the image formed in each case;
Date posted:
April 11, 2019
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Answers (1)
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An object is placed 30cm from a concave mirror of focal length 20cm. Calculate;
a. Image position
b. Magnification
(Solved)
An object is placed 30cm from a concave mirror of focal length 20cm. Calculate;
a. Image position
b. Magnification
Date posted:
April 11, 2019
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Answers (1)
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State the laws of reflection which apply to both concave and convex mirrors
(Solved)
State the laws of reflection which apply to both concave and convex mirrors.
Date posted:
April 11, 2019
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Answers (1)
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Define the term aperture
(Solved)
Define the term aperture.
Date posted:
April 11, 2019
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Answers (1)
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Find the moment of force in the figure below
(Solved)
Find the moment of force in the figure below
Date posted:
April 11, 2019
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Answers (1)