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Ask QuestionPosted by Shreya Mishra 3 years, 10 months ago
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Posted by Prateek Kumar 3 years, 10 months ago
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Benazir Benazir 3 years, 10 months ago
Brijendra Kumar 3 years, 10 months ago
Sidharth Tiwari 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Newton’s Law of Universal Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.
The universal gravitation equation thus takes the form
| <center>F∝m1m2/ r2 </center> <center>⇒F=G m1m2/ r2</center> |
Posted by Monty Dahiya 3 years, 10 months ago
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Posted by S Thakur 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
The reason for this is that cold air is denser and has less space between the molecules of gas. When the temperature drops and cold air blankets the ground, any warm air is forced to pass over it. In this way, the cold air can form a kind of cap. Pollutants aren't as free to escape and disperse in the dense colder air.
Posted by Sadik Choudhury 3 years, 10 months ago
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Shailee Mathpal 3 years, 10 months ago
Posted by Gaming Insaan 3 years, 10 months ago
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Brijendra Kumar 3 years, 10 months ago
Muskan Jain 3 years, 10 months ago
Gaurav Seth 3 years, 10 months ago
| Healthy |
Disease Free |
|
A state of complete physical, mental and social well being |
State of the absence of discomfort in any part of the body |
|
It depends upon the individual as well as on social and environmental factors |
It depends on the individual only |
| A healthy person will be disease-free |
A disease-free person may or may not be healthy |
| A healthy person is energetic and is able to perform as per the requirement |
The performance of a disease-free person depends upon the environment and personal attitude |
Posted by Dhruvin Senghani 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
- Greenhouse effect is the process by which radiations from the sun are absorbed by the greenhouse gases and not reflected back into space. This insulates the surface of the earth and prevents it from freezing.
- Acid Rain as the name suggests can be said to be the precipitation of acid in the form of rain in the simplest manner. When atmospheric pollutants like oxides of nitrogen and sulphur react with rainwater and come down with the rain, then this results in Acid Rain.
- Global warming is a gradual increase in the earth's temperature generally due to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.
Posted by Rashmi Kumari 3 years, 10 months ago
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Sehaj Pannu 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Bohr’s Model of Atom
- According to Neil’s Bohr the electrons could revolve around the nucleus in only certain orbits known as discrete orbits of electrons, each orbit having different radii.
- When an electron is revolving in a particular orbit around the nucleus the electron does not radiate energy.
- Bohr’s model of an atom can be described as follows:-
- An atom is made up of three sub-atomic particles – protons, electrons, neutrons.
- The protons and neutrons are located in a small nucleus in the centre of the atom.
- The electrons revolve around the nucleus rapidly in fixed circular paths called energy levels or shells.
- There is limit in the number of electrons that each shell can hold. It is given by the formula 2n2, where n = orbit number or energy level index.
- Each energy level is associated with a fixed amount of energy.
- There is no change in the energy of the electrons as long as they keep revolving in the same energy level, and the atom remains stable.
Posted by Sahil Malik 3 years, 10 months ago
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Mevada Vraj 3 years, 10 months ago
Posted by Mukesh Siwach 3 years, 10 months ago
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Aakanksha Rawat 3 years, 10 months ago
Archana Aggarwal 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Movement of any object from one position to another position with respect to the observer is called as Motion. Motion Along a Straight Line: When an object moves along a straight line, the motion of the object is called rectilinear motion. For example; motion of a car on highway.
Mevada Vraj 3 years, 10 months ago
Posted by Riya Kumari 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
An octopus is a soft-bodied, sea creature with a bulbous head and eight arms, hence it is named as the octopus. The name octopus was originally derived from a Greek word meaning number eight. Octopuses are carnivores, which feed on other creatures available in their area including clams, shellfish, shrimp, lobsters, fish, sharks, and even birds. These sea creatures are found in all oceans and usually live on the ocean floor, within shells, crevices, and reefs.
Sanchit Gupta 3 years, 10 months ago
Posted by Hardavi Patel 3 years, 10 months ago
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Posted by Hardavi Patel 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Mitochondrion possesses double membrane as its covering. The outer smooth surface and the inner membrane forms infoldings called as cristae, which increases surface area for more formation of energy in the form of ATP.
Posted by Muskan Yadav 3 years, 10 months ago
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Posted by Charmi 24 3 years, 10 months ago
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Yogesh S 3 years, 10 months ago
Nandini Arora 3 years, 10 months ago
Anuj Kumar 3 years, 10 months ago
Posted by Ashvini Patidar 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
g=10 m/s^2
m=50 kg
h=5m
t=4s
Then
W=mgh
=50×10×5
=2500 N
Now,
Average power=total work done / time
=2500/4
=625 J s^-1
Sai Vennela S 3 years, 10 months ago
Posted by Vibhuti Gautam 3 years, 10 months ago
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Nandini Arora 3 years, 10 months ago
Anuj Kumar 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Dalton's atomic theory suggested that the atom was indivisible and indestructible. But the discovery of two fundamental particles (electrons and protons) inside the atom, led to the failure of this aspect of Daltons atomic theory.
Posted by Adi Dev 3 years, 10 months ago
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Nandini Arora 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
The postulates of this theory may be stated as follows:
- Matters are composed of very tiny particles called atoms.
- These particles are too small to see and cannot be created or destroyed in a chemical reaction.
- Atoms of a specified element are identical in mass and chemical properties.
- Atoms of different elements have different masses and chemical properties.
- Atoms combine in the ratio of small whole numbers to form compounds.
- The relative number and kinds of atoms are constant in a given compound.
Vibhuti Gautam 3 years, 10 months ago
Posted by Nany Sandeep 3 years, 10 months ago
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Posted by Saransh Gupta 3 years, 10 months ago
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Nandini Arora 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
According to Thomson Model of an atom:
1)An atom consist of a sphere of positive charge with negatively charged electrons embedded in it.
2)The positive and negative charges in an atom are equal in magnitude,due to which an atom is electrically neutral.IT has no overall positive and negative charge.
Posted by Harsha Choudhary Vasundhara 3 years, 10 months ago
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Harsha Choudhary Vasundhara 3 years, 10 months ago
Anurag Chaturvedi 3 years, 10 months ago
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Abhinandan? Dubey?? 3 years, 10 months ago
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Posted by Kartik Varute 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Fixed capital is also called a "fixed investment" and encompasses assets that are used continuously during the business's operation, according to the Business Dictionary. For example, the equipment used to produce merchandise would constitute fixed capital because it is not depleted with each use.
Mohini Kumari 3 years, 10 months ago
Posted by Ankit Dwivedi 3 years, 10 months ago
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Meghna Thapar 3 years, 10 months ago
In humid weather it takes longer time to dry wet clothes because the moisture and water vapour are present in humid weather they gets slight absorbed by the clothes and clothes maintain their wetness due to this they take a longer time to dry and in humid weather they don't get enough sunlight to dry themselves at a faster or normal rate, so they take a long time due to these reasons.
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Anant Detha 3 years, 10 months ago
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