1.Streamline flow
In this type of flow, the fluid molecules in all the layers travel in the same direction with the same speed. The molecules move along paths called streamlines. In streamline flow, the streamlines are parallel to each other.
For a fluid to have streamline kind of flow, the following conditions are necessary:
-The fluid must be non-viscous so that the velocity of the fluid at all points along the tube is the same.
-The fluid must be incompressible so that the density of the fluid is the same at all points.
2: Turbulent flow
When an obstacle is placed on the path of the streamlines, the molecules will hit the barrier, lose some of its energy and may then change direction. This can lead to a disturbance of some sought resulting in formation of eddies or whirls. This is referred to as turbulent flow.
3: Laminar flow
This is where all the molecules in each layer move with the same velocity but different from that of the other layers i.e. each layer has its own velocity
Moraa orina answered the question on April 8, 2018 at 10:11
- Explain the factors affecting speed of sound in air(Solved)
Explain the factors affecting speed of sound in air
Date posted: April 8, 2018. Answers (1)
- A student standing between two cliffs and 500m from the nearer cliff clapped his hands and heard the first
echo after 3s and the second...(Solved)
A student standing between two cliffs and 500m from the nearer cliff clapped his hands and heard the first
echo after 3s and the second echo 2s later. Calculate:
a) the speed of the sound in air
b) the distance between the cliffs
Date posted: April 8, 2018. Answers (1)
- A man makes a loud sound and hears an echo of the sound 1.2s later. If the speed of sound in air is 330m/s, calculate...(Solved)
A man makes a loud sound and hears an echo of the sound 1.2s later. If the speed of sound in air is 330m/s, calculate the distance between the man and the object reflecting the sound.
Date posted: April 8, 2018. Answers (1)
- The wheel of a car is rotated at 120 revolutions per second, calculate: (a) The period, T (b) The speed of the waves generated if the wavelength...(Solved)
The wheel of a car is rotated at 120 revolutions per second, calculate:
a) The period, T
b) The speed of the waves generated if the wavelength is 1.5 * 10-2m.
Date posted: April 8, 2018. Answers (1)
- A source of waves has a frequency of 512Hz. Calculate the wavelength of the waves produced if the speed of the waves is 330m/s.(Solved)
A source of waves has a frequency of 512Hz. Calculate the wavelength of the waves produced if the speed of the waves is 330m/s.
Date posted: April 8, 2018. Answers (1)
- State the types of waves in terms of propagation of particles(Solved)
State the types of waves in terms of propagation of particles
Date posted: April 8, 2018. Answers (1)
- State and explain the types of waves(Solved)
State and explain the types of waves
Date posted: April 8, 2018. Answers (1)
- State the properties of materials(Solved)
State the properties of materials
Date posted: April 8, 2018. Answers (1)
- State the applications of spherical mirrors(Solved)
State the applications of spherical mirrors
Date posted: April 8, 2018. Answers (1)
- A convex mirror of focal length 9cm produces an image on its axis 6cm from the mirror. Determine the
position of the object.(Solved)
A convex mirror of focal length 9cm produces an image on its axis 6cm from the mirror. Determine the
position of the object.
Date posted: April 8, 2018. Answers (1)
- Determine the position, size and nature of the image of an object 4cm tall placed on the principal axis of a
concave mirror of focal...(Solved)
Determine the position, size and nature of the image of an object 4cm tall placed on the principal axis of a
concave mirror of focal length 15cm at a distance 30cm from the mirror.
Date posted: April 8, 2018. Answers (1)
- The charge stored by a cell A of plate dimensions 0.2m*0.2m is 108000C.
a) What charge is stored in cell B of plate dimensions 0.4m*0.4m?(Solved)
The charge stored by a cell A of plate dimensions 0.2m*0.2m is 108000C.
a) What charge is stored in cell B of plate dimensions 0.4m*0.4m?
Date posted: April 7, 2018. Answers (1)
- What is the capacity of a cell which can supply current of 250 mA for 4 hours?(Solved)
What is the capacity of a cell which can supply current of 250 mA for 4 hours?
Date posted: April 7, 2018. Answers (1)
- Differentiate between conductors and insulators giving examples(Solved)
Differentiate between conductors and insulators giving examples
Date posted: April 7, 2018. Answers (1)
- Charge of 180C flows through a conductor for 3 minutes. Calculate the current flowing through the conductor.(Solved)
Charge of 180C flows through a conductor for 3 minutes. Calculate the current flowing through the
conductor.
Date posted: April 7, 2018. Answers (1)
- If the current in a circuit is 2A, calculate:
a) The charge that crosses a point in the circuit in 0.6s.
b) The number of electrons crossing...(Solved)
If the current in a circuit is 2A, calculate:
a) The charge that crosses a point in the circuit in 0.6s.
b) The number of electrons crossing the point per second. Take e=1.6*10-19C.
Date posted: April 7, 2018. Answers (1)
- State the applications of reflection at plane surfaces(Solved)
State the applications of reflection at plane surfaces
Date posted: April 7, 2018. Answers (1)
- At what angle should two mirrors be inclined to form:a) 17 images?b) 29 images?(Solved)
At what angle should two mirrors be inclined to form:
a) 17 images?
b) 29 images?
Date posted: April 7, 2018. Answers (1)
- State the laws of reflection(Solved)
State the laws of reflection
Date posted: April 7, 2018. Answers (1)
- A lamp of height 6cm stands in front of a pinhole camera at a distance of 24cm. the camera screen is 8cm from the...(Solved)
A lamp of height 6cm stands in front of a pinhole camera at a distance of 24cm. The camera screen is 8cm
from the pinhole. What is the height of the image of the lamp on the screen?
Date posted: April 6, 2018. Answers (1)