F1 / F2 = e1 / e2 = F2 = (4 × 3.2) / 1.0 = 12.8 N.
Mutiso answered the question on October 12, 2018 at 10:45
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A vertical object 5 cm high is placed 10 cm in front of a convex mirror of focal length 15 cm. find the position, size...
(Solved)
A vertical object 5 cm high is placed 10 cm in front of a convex mirror of focal length 15 cm. find the position, size and nature of image formed. Determine the magnification of the image.
Date posted:
October 12, 2018
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Answers (1)
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Determine the size, position and nature of the image of an object 5.0 cm tall, placed on the principal axis of a concave mirror of...
(Solved)
Determine the size, position and nature of the image of an object 5.0 cm tall, placed on the principal axis of a concave mirror of focal length 15 cm, at a distance 35 cm from the mirror.
Date posted:
October 12, 2018
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Answers (1)
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Name the parts of a spherical mirror
(Solved)
Name the parts of a spherical mirror.
Date posted:
October 12, 2018
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Answers (1)
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Explain three states of equilibrium with aid of diagrams
(Solved)
Explain three states of equilibrium with aid of diagrams.
Date posted:
October 12, 2018
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Answers (1)
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A uniform rod is 1.0 m long weighs 5 N. It is supported horizontally at one end by a spring and the other end rests...
(Solved)
A uniform rod is 1.0 m long weighs 5 N. It is supported horizontally at one end by a spring and the other end rests on a table as shown below. A mass of 2kg is hung from the rod as shown; determine,
a) Reading of the spring balance
b) Reaction force, F, from the table.

Date posted:
October 12, 2018
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Answers (1)
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A uniform rod of length 1.0 m is hung from a spring balance as shown and balanced in horizontal position by a force of 1.6...
(Solved)
A uniform rod of length 1.0 m is hung from a spring balance as shown and balanced in horizontal position by a force of 1.6 N. Determine; (a) The weight of the rod (b) Reading of the spring balance

Date posted:
October 12, 2018
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Answers (1)
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Study the diagram below and determine the value of X and hence the length of the bar
(Solved)
Study the diagram below and determine the value of X and hence the length of the bar.

Date posted:
October 11, 2018
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Answers (1)
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The following bar is of negligible weight. Determine the value of ‘x’ if the bar is balanced.
(Solved)
The following bar is of negligible weight. Determine the value of ‘x’ if the bar is balanced.

Date posted:
October 11, 2018
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Answers (1)
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A uniform rod of negligible mass balances when a weight of 3 N is at A, weight of 3 N is at B and a...
(Solved)
A uniform rod of negligible mass balances when a weight of 3 N is at A, weight of 3 N is at B and a weight of W is at C. What is the value of weight W?

Date posted:
October 11, 2018
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Answers (1)
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Suppose an oil drop has a volume of 0.10 mm3 and forms a film with a radius of 10 cm. Calculate, the thickness of the...
(Solved)
Suppose an oil drop has a volume of 0.10 mm3 and forms a film with a radius of 10 cm. Calculate, the thickness of the oil film.
Date posted:
October 11, 2018
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Answers (1)
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Explain how to measure length using a micrometer screw gauge
(Solved)
Explain how to measure length using a micrometer screw gauge
Date posted:
October 11, 2018
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Answers (1)
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Explain how to measure length using vernier caliper
(Solved)
Explain how to measure length using vernier calipers.
Date posted:
October 11, 2018
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Answers (1)
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Describe the domain theory of magnetism
(Solved)
Describe the domain theory of magnetism.
Date posted:
October 11, 2018
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Answers (1)
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Outline ways of caring for magnets
(Solved)
Outline ways of caring for magnets.
Date posted:
October 11, 2018
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Answers (1)
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Describe the methods used to make magnets. Use diagrams where necessary
(Solved)
Describe the methods used to make magnets. Use diagrams where necessary.
Date posted:
October 11, 2018
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Answers (1)
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Describe an experiment to charge and discharge a simple secondary cell
(Solved)
Describe an experiment to charge and discharge a simple secondary cell.
Date posted:
October 11, 2018
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Answers (1)
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Describe and experiment of making a simple cell
(Solved)
Describe and experiment of making a simple cell
Date posted:
October 11, 2018
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Answers (1)
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Describe and experiment for location of an image by the non-parallax method
(Solved)
Describe and experiment for location of an image by the non-parallax method.
Date posted:
October 11, 2018
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Answers (1)
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What is the difference between regular reflection and diffuse reflection?
(Solved)
What is the difference between regular reflection and diffuse reflection?
Date posted:
October 11, 2018
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Answers (1)
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Explain the applications of rectilinear propagation of light
(Solved)
Explain the applications of rectilinear propagation of light.
Date posted:
October 11, 2018
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Answers (1)