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Posted by Krishna Chander 3 years, 11 months ago
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Ziya Rehaman 3 years, 10 months ago
Gaurav Seth 3 years, 11 months ago
The normal room temperature which would be comfortable for living is around 20 - 25° C.
In chemistry, The upper limit 25°C is taken as Standard room temperature .
We know that,
Temperature on Celsius + 273 = Temperature on Kelvin.
Now,
25°C = 25 + 273 = 298K .
Therefore, The standard room temperature in Kelvin is 298 k
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Yogita Ingle 4 years ago
Andreas Vesalius was a Belgian born anatomist and a physician. Vesalius published his most important work, 'De Humani Corporis Fabrica Libri Septem' (seven books on the fabric of human body), generally known as Fabrica. Fabrica is the most famous anatomy book ever written and also the first book on human anatomy to be reasonably accurate. He is thus known as the father of anatomy.
Posted by Srikant Khuntia 4 years ago
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Yogita Ingle 4 years ago
Newton’s laws of motion imply the relationship between an object’s motion and the forces acting on it. In the first law, we come to understand that an object will not change its motion unless a force acts on it. The second law states that the force on an object is equal to its mass times its acceleration. And, finally, the third law states that for every action, there is an equal and opposite reaction.
What are some daily life examples of Newton’s 1st, 2nd and 3rd laws of motion?
Riding a bicycle is a good example of Newton’s 2nd law. In this example, the bicycle is the mass. The leg muscles pushing on the pedals of the bicycle is the force.
- The motion of a ball falling through the atmosphere, or a model rocket being launched up into the atmosphere are both excellent examples of Newton’s 1st law.
- You hit a wall with a certain amount of force, and the wall returns that same amount of force. This is an example of Newton’s 3rd law.
Posted by Himanshi Goyal 4 years ago
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Nishant Sharma 3 years, 5 months ago
Yogita Ingle 4 years ago
- Velocity: Velocity is the speed of an object moving in a definite direction.
- The SI unit of velocity is also metre per second.
- Velocity is a vector quantity; it has both magnitude and direction.
Posted by Kanchan Jadhav 4 years ago
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Yogita Ingle 4 years ago
Mitosis is that step in the cell cycle where the newly formed DNA is separated and two new cells are formed with the same number and kind of chromosomes as the parent nucleus.
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Consider a parallel plate capacitor without any dielectric medium (vacuum) between the plates. Let A be the area of the plates and d be the plate separation. The two plates have charges Q and – Q. Since d is much smaller than the linear dimension of the plates (d2 << A),
Plate 1 has surface charge density σ = Q/A and plate 2 has a surface charge density – σ. Using earlier result of the electric field in different regions is: Outer region I (region above the plate 1),
Outer region II (region below the plate 2),
In the inner region between the plates 1 and 2, the electric fields due to the two charged plates add up, giving
The direction of electric field is from the positive to the negative plate. Thus, the electric field is localised between the two plates and is uniform throughout. For plates with finite area, this will not be true near the outer boundaries of the plates. The field lines bend outward at the edges – an effect called ‘fringing of the field’. Hence σ will not be strictly uniform on the entire plate.
However, for d2 << A, these effects can be ignored in the regions sufficiently far from the edges, and the field there is given by Eq. (1). Now for uniform electric field, potential difference is simply the electric field times the distance between the plates, that is,
The capacitance C of the parallel plate capacitor is then
which, as expected, depends only on the geometry of the system.
Posted by Pradakshina ?? 4 years ago
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Ranjeet Katariya 3 years, 6 months ago
Yogita Ingle 4 years ago
Carolus Linnaeus is the father of taxonomy because of one of his contributions.
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Ziya Rehaman 3 years, 10 months ago
Paritosh Dansena 4 years, 1 month ago
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Dimensions of a physical quantity are powers (exponents) to which base quantities are raised to represent that quantity. They are represented by square brackets around the quantity.
- Dimensions of the 7 base quantities are – Length [L], Mass [M], time [T], electric current [A], thermodynamic temperature [K], luminous intensity [cd] and amount of substance [mol].
Force = Mass x Acceleration = [M][L]/[T]2 = [MLT-2]
Posted by Gulshan Kumar 4 years, 1 month ago
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Gaurav Seth 4 years, 1 month ago
Aristotle is known as the “Father of Biology” because he extensively studied the natural world and contemplated its origins using scientific insights and systematic observations rather than attributing it to divine intervention. He was also the first to uncover the relationship between animals and establish a system of classification.
During his time, Aristotle made many observations about the local flora and fauna, for instance, he was the first to document that an octopus can change its colour when disturbed. He also named close to 500 species of animals, identifying their characteristic features and documenting them.
Posted by Suraj Suraj 1 year, 4 months ago
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Gaurav Seth 4 years, 1 month ago
The poet wants us to run- (i) away from the city, (ii) into the sun, (iii) towards the country, (iv) in the raindrops, (v) underneath the trees, (vi) down the hillside, (vii) through the meadow.
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Posted by Sukanta God Sukanta Bhaumik 4 years, 2 months ago
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Neuroglia are non-neuronal cells that support and protect the neurons. Neuroglia in the central nervous system include astrocytes, oligodendrocytes, microglial cells, and ependymal cells. Schwann cells and satellite cells are the neuroglia in the peripheral nervous system.
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Principles of Management
Principles of management are broad and general guidelines for managerial decision making and behavior (i.e. they guide the practice of management).
Nature of Principles of Management
The nature of principles of management can be described in the following points:
1. Universal applicability i.e. they can be applied in all types of organizations, business as well as non-business, small as well as large enterprises.
2. General Guidelines: They are general guidelines to action and decision making however they do not provide readymade solutions as the business environment is ever changing or dynamic.
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Yogita Ingle 3 years, 11 months ago
Dark reaction is also called carbon-fixing reaction. It is a light-independent process in which sugar molecules are formed from the carbon dioxide and water molecules.
The dark reaction occurs in the stroma of the chloroplast, where they utilize the products of the light reaction.
Plants capture the carbon dioxide from the atmosphere through stomata and proceed to the Calvin cycle.
In the Calvin cycle, the ATP and NADPH formed during light reaction drives the reaction and convert six molecules of carbon dioxide into one sugar molecule, i.e. glucose.
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