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Ask QuestionPosted by Anupriya Kumari 4 years, 3 months ago
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Posted by Ishika Bhardwaj 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
Length of the pool = 90 m
Average speed:
Speed = Distance/Time
speed = 180/60
speed = 3 m/s
Now, velocity=displacement/time
Since, displacement=0( Since she comes back to the same place)
Therefore, the velocity=0
Posted by Prerna Tandel 4 years, 3 months ago
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Posted by Divyansh Rathi 4 years, 3 months ago
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Posted by Baishnupriya Behera 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
Homogeneous mixture |
Heterogeneous mixture |
| It has a uniform composition | It has a non-uniform composition |
| It has only one phase | There are two or more phases |
| It can’t be separated out physically | It can be separated out physically |
| ‘homo’ means the same | ‘hetero’ means different |
| Example: a mixture of alcohol and water | Example: a mixture of sodium chloride and sand |
Posted by Richa Pandey 4 years, 3 months ago
- 4 answers
Yogita Ingle 4 years, 3 months ago
acceleration of a body moving with a uniform velocity = 0
because acceleration = change in velocity/ time
change in velocity= 0
SO, acceleration = 0
Posted by Richa Pandey 4 years, 3 months ago
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Saurav Sharma 4 years, 3 months ago
Anchal Mishra 4 years, 3 months ago
Posted by Richa Pandey 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
That physical quantity is called speed (when no direction is given) and when it has a direction it's called velocity.
In other terms speed and velocity both are kinematic quantities that refer to the displacement of a body made.
When an object covers distance it is called speed and when the speed is observed going towards a particular direction it is referred to as velocity.
Posted by Richa Pandey 4 years, 3 months ago
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Saurav Sharma 4 years, 3 months ago
Suryansh Kundra 4 years, 3 months ago
Posted by Sushant Mishra 4 years, 3 months ago
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Meghna Thapar 3 years, 11 months ago
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set. The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue. ... Some organisms can use mitosis to reproduce asexually. The offspring of asexual reproduction are genetically identical to each other and to their parent.
Posted by Sanjay Kb 4 years, 3 months ago
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Aman Deep Pandit 4 years, 3 months ago
Snigdha Patni 4 years, 3 months ago
Posted by Devina Wakchaure 4 years, 3 months ago
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Rajat Singh 4 years, 3 months ago
Posted by Nick Blind 4 years, 3 months ago
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Rajat Singh 4 years, 3 months ago
Sazid Khan 4 years, 3 months ago
Posted by Rita Upadhya 4 years, 3 months ago
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Ayush Pandey 4 years, 3 months ago
Posted by Suhani Rana 4 years, 3 months ago
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Rita Upadhya 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
Both fog and smoke have gas as the dispersion medium. The only difference is that the dispersed phase in fog is liquid and in smoke it is a solid.
Posted by Suhani Rana 4 years, 3 months ago
- 2 answers
Yogita Ingle 4 years, 3 months ago
Water dissolves a large number of substances in it. So it is called universal solvent.
Posted by Suhani Rana 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
The boiling point and freezing point of the given liquid comes out to be 100°C or 373 K and 0°C or 273 K respectively under one atmospheric pressure, it confirms that the given liquid is pure water.
Posted by Suhani Rana 4 years, 3 months ago
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Bhakti Jugani 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
The force of attraction between the particles of solids is very strong and there is no space between the particles due to their compact arrangement. As a result, rate of diffusion in solids is slowest.
Posted by Suhani Rana 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
The temperature of any substance remain constant during the change of state because the heat energy supplied is used up in changing the state of matter and also this heat is used for breaking of several bonds or attractive forces.This heat, which does not raise the temperature of the body, is called Laten heat.
Posted by Neha S 4 years, 3 months ago
- 2 answers
Neha S 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
The boiling point of a liquid is the temperature at which the vapour pressure of the liquid becomes equal to the atmospheric pressure of the liquid’s environment. At this temperature, the liquid is converted into a vapour.
Posted by Daksh Verma 4 years, 3 months ago
- 3 answers
Bhakti Jugani 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
If the location of an object changes with time the object is said to be in motion.
Posted by Parnali Paul 4 years, 3 months ago
- 1 answers
Meghna Thapar 4 years, 3 months ago
Rest and motion are basically relative terms which are linked to each other. Rest and motion define the kinetic state of an object as to whether it is moving, changing its position with time or not. Motion represents movement while rest represents stationariness. In physics, rest is the state an object being stationary relative to a particular frame of reference or another object; when the position of a body with respect to its surroundings does not change with time it is said to be "at rest". The examples of rest include: sleeping, sitting, standing, staring, lying, a fixed clock, bottle kept on a table, a stopped car. A body is said to be in a state of motion when it is moving or equivalently its position continuously changes with respect to time.
Posted by Lucifer ? Morningstar? 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
| INERTIA OF MOTION | INERTIA OF REST |
| (1) The inherent property of a body by virtue of which it cannot change its state of motion, is called inertia of motion . (2)It is due to inertia of motion that a rotating fan continues to rotate for some time even after it is switched off or a person falls when he jumps from a moving bus. |
(1) The inherent property of a body by virtue of which it cannot change its position of rest, is called inertia of rest . (2) It is due to inertia of rest that passengers in a vehicle get a backward jerk when the vehicle starts suddenly or fruits hanging from a branch fall down when the branch is shaken |
Posted by Sumeet Jain 4 years, 3 months ago
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Ummer Umaid 4 years, 3 months ago
Suryansh Kundra 4 years, 3 months ago
Posted by Supreet Samal 4 years, 3 months ago
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Posted by Deepak Verma 4 years, 3 months ago
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Gagan Gar 4 years, 3 months ago
Posted by Spandan Ghagi 4 years, 3 months ago
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Posted by Vaidehi Sharma 4 years, 3 months ago
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Gaurav Seth 4 years, 3 months ago
We all know that displacement is all about the total distance measured between initial and final points.
After the particle covers half path of the circle, the displacement can be easily calculated by measuring the distance between initial and final points.
Displacement after half circle = AB=OA + OB Hence, the displacement after half circle is 2r.
Posted by Sailesh Kumar 4 years, 3 months ago
- 1 answers
Meghna Thapar 4 years, 3 months ago
Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws. Science can be divided into different branches based on the subject of study. The physical sciences study the inorganic world and comprise the fields of astronomy, physics, chemistry, and the Earth sciences. The biological sciences such as biology and medicine study the organic world of life and its processes. Social sciences like anthropology and economics study the social and cultural aspects of human behaviour.
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Ak Gamers 4 years, 3 months ago
1Thank You