Line of flow refers to the path followed by a small element of a moving fluid.
Mutiso answered the question on October 12, 2018 at 17:17
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A girl claps her hands once at a distance 250 m from a vertical cliff. If the temperature in the surrounding is 5oC, how long...
(Solved)
A girl claps her hands once at a distance 250 m from a vertical cliff. If the temperature in the surrounding is 5oC, how long does it take for her to hear the echo?
Date posted:
October 12, 2018
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Answers (1)
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A boy strikes a railway line (steel) with a hammer. If the speed of sound in steel is 5,200 m/s, determine the time taken for...
(Solved)
A boy strikes a railway line (steel) with a hammer. If the speed of sound in steel is 5,200 m/s, determine the time taken for the sound to reach another boy 2.3 km down the railway line with his ear on the rail.
Date posted:
October 12, 2018
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What are the characteristics of sound waves?
(Solved)
What are the characteristics of sound waves?
Date posted:
October 12, 2018
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Answers (1)
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The figure below illustrates part of the displacement-time graph of a wave travelling across water at a particular place with a velocity of 2 ms-1....
(Solved)
The figure below illustrates part of the displacement-time graph of a wave travelling across water at a particular place with a velocity of 2 ms-1. Calculate the wave’s; (a) Amplitude (b) Frequency (f) (c) Wavelength
Date posted:
October 12, 2018
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Answers (1)
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A rope is displaced at a frequency of 3 Hz. If the distance between two successive crests of the wave train is 0.8 m, calculate...
(Solved)
A rope is displaced at a frequency of 3 Hz. If the distance between two successive crests of the wave train is 0.8 m, calculate the speed of the waves along the rope.
Date posted:
October 12, 2018
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Answers (1)
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Outline the characteristics of waves
(Solved)
Outline the characteristics of waves
Date posted:
October 12, 2018
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Define transverse and longitudinal pulses and waves giving suitable illustrations
(Solved)
Define transverse and longitudinal pulses and waves giving suitable illustrations.
Date posted:
October 12, 2018
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Answers (1)
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Two identical springs, whose spring constant is 6.0 N/cm, are used to support a load of 60 N as shown below. Determine the extension of...
(Solved)
Two identical springs, whose spring constant is 6.0 N/cm, are used to support a load of 60 N as shown below. Determine the extension of each spring.
Date posted:
October 12, 2018
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Answers (1)
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A body of 200 g was hung from the lower end of a spring which obeys Hooke’s law. Given that the spring extended by...
(Solved)
A body of 200 g was hung from the lower end of a spring which obeys Hooke’s law. Given that the spring extended by 100 mm, what is the spring constant for this spring?
Date posted:
October 12, 2018
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Answers (1)
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A load of 4 N causes a certain copper wire to extend by 1.0 mm. Find the load that will cause a 3.2 mm extension...
(Solved)
A load of 4 N causes a certain copper wire to extend by 1.0 mm. Find the load that will cause a 3.2 mm extension on the same wire. (Assume Hooke’s law is obeyed).
Date posted:
October 12, 2018
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Answers (1)
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If the springs shown below are similar and the constant of proportionality (k) is 100 Nm-1, determine total extension in each arrangement.
(Solved)
If the springs shown below are similar and the constant of proportionality (k) is 100 Nm-1, determine total extension in each arrangement.
Date posted:
October 12, 2018
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Answers (1)
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Applications of the force on a conductor
(Solved)
Applications of the force on a current carrying conductor.
Date posted:
October 12, 2018
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Answers (1)
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State the factors affecting the magnitude of the force on a current carrying conductor
(Solved)
State the factors affecting the magnitude of the force on a current carrying conductor
Date posted:
October 12, 2018
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Answers (1)
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What is an electromagnet?
(Solved)
What is an electromagnet?
Date posted:
October 12, 2018
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Magnetic field due to solenoid
(Solved)
Magnetic field due to solenoid
Date posted:
October 12, 2018
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Rules for determining the direction of the lines of force
(Solved)
Rules for determining the direction of the lines of force.
Date posted:
October 12, 2018
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Answers (1)
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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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State the applications of curved reflectors
(Solved)
State the applications of curved reflectors
Date posted:
October 12, 2018
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Answers (1)
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Location of images using ray diagrams
(Solved)
Location of images using ray diagrams.
Date posted:
October 12, 2018
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Answers (1)