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Indresh Verma 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
The number of units in one mole of any substance is called Avogadro’s number or Avogadro’s constant. It is equal to 6.022140857×1023. The units may be electrons, ions, atoms, or molecules, depending on the character of the reaction and the nature of the substance.
So, if you wanted to know the number of particles in 3 moles of a substance, the value would be:
= 3 x 6.023 x 1023
= 1.81 x 1024 particles
Posted by Jainiteesh Palanichamy 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
In general, the law of sines is defined as the ratio of side length to the sine of the opposite angle. It holds for all the three sides of a triangle respective of their sides and angles.
a/SinA = b/SinB = c/SinC
Posted by Shah Adil 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
Gravitational Constant. In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The direction of the force is in a straight line between the two bodies and is attractive. Thus, an apple falls from a tree because it feels the gravitational force of the Earth and is therefore subject to “gravity”.
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Bhushan Lal Sahu 4 years, 4 months ago
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Usha Goswami 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
Electromagnetism is a branch of Physics, deals with the electromagnetic force that occurs between electrically charged particles. The electromagnetic force is one of the four fundamental forces and exhibits electromagnetic fields such as magnetic fields, electric fields, and light. It is the basic reason electrons bound to the nucleus and responsible for the complete structure of the nucleus.
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Ankit Singh Thakur???? 4 years, 4 months ago
Gaurav Seth 4 years, 4 months ago
| Speed | Velocity |
| Speed is the distance covered by a body in unit time. | Velocity is the displacement covered by a body in a unit time. |
| It is a scalar quantity. | It is a vector quantity. |
| It Determines “How fast an object is moving”? | It determines “In which direction an object is moving”? |
| It indicates the rapidity of objects. | It indicates both the rapidity and position of the object. |
| It is the rate of change of distance. | It is a rate of change of displacement. |
| It cannot be negative. | The velocity of moving Objects can be negative, positive or can be zero. |
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Sona ?? 4 years, 3 months ago
Sona ?? 4 years, 3 months ago
Snehil J@@T 4 years, 3 months ago
Posted by Kha Gay Mella Sara Purana Yaall ☹️??? 4 years, 4 months ago
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Posted by Ankit Singh Thakur???? 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
The energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.
Potential energy is one of the two main forms of energy, along with kinetic energy. There are two main types of potential energy and they are:
- Gravitational Potential Energy
- Elastic Potential Energy
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Gaurav Seth 4 years, 4 months ago
in motion of planets around the sun centripetal force is provided by the gravitational force of attraction.
A centripetal force is not a fundamental force, but a net force which causes an object to move in a circular path. It is directed towards the centre around which the body is moving. In the case of planets moving around the sun, the centripetal force is provided by the gravitational force of the sun. And in the case of satellites moving around the planets, the centripetal force is provided by the gravitational force of the planets.
Posted by Manish Nailwal 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
As you go to higher altitudes, there are less air molecules pushing down on you (lower pressure). When the pressure of a gas decreases, the temperature also decreases (the reverse is also true – when the gas pressure increases, the temperature increases). Therefore, the air temperature is lower at higher altitudes. Because as you go up from Surface level to higher altitudes the temperature decreases in atmosphere mainly in Troposphere. ... This is the reason why hill stations have low temperature.
Posted by Prakhar Singh 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
Physics tries to reach out the complete understanding of the universe and thus the various natural phenomena. It attempts to find the elementary particles that make the matter, forces that guide the phenomena and the various forms of energy. Physics has its scope in Classical physics and Modern physics.
<a data-ved="2ahUKEwiOiY3wndvqAhVQzzgGHQHSCj8Q9QEwAHoECAQQAw" href="https://www.google.com/search?q=Fully+derivation+of+scope+and+excitement+of+physics&rlz=1C1CHBD_enIN888IN888&sxsrf=ALeKk01DFfHmnsB882NMn1l4lYln1WR1Og:1595227592940&tbm=isch&source=iu&ictx=1&fir=rlCvPEghZvMuvM%252C-FHebcwRA27oQM%252C_&vet=1&usg=AI4_-kT0kAHMFBsvfQkw74rkDcK6WlrKhw&sa=X&ved=2ahUKEwiOiY3wndvqAhVQzzgGHQHSCj8Q9QEwAHoECAQQAw#imgrc=rlCvPEghZvMuvM"></a>
The scope of physics is quite vast and covers an enormous range of magnitude of physical quantities like mass, length, time, energy etc. The scope is divided into two sections, where on one side it studies about phenomena at a very small microscopic level involving and analyzing electrons, protons, and neutrons.
Meghna Thapar 4 years, 4 months ago
Physics tries to reach out the complete understanding of the universe and thus the various natural phenomena. It attempts to find the elementary particles that make the matter, forces that guide the phenomena and the various forms of energy. Physics has its scope in Classical physics and Modern physics. The scope of physics is quite vast and covers an enormous range of magnitude of physical quantities like mass, length, time, energy etc. The scope is divided into two sections, where on one side it studies about phenomena at a very small microscopic level involving and analyzing electrons, protons, and neutrons.
Posted by Harkomalpreet Kaur 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
The relation between velocity and time is a simple one during constantly accelerated, straight-line motion. ... Change in velocity is directly proportional to time when acceleration is constant. If an object already started with a certain velocity, then its new velocity would be the old velocity plus this change. Velocity is the measure of the amount of distance an object covers in a given amount of time. Here's a word equation that expresses the relationship between distance, velocity and time: Velocity equals distance travelled divided by the time it takes to get there.
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Numendra Kumar Pandey 4 years, 4 months ago
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