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Within economics, the concept of utility is used to model worth or value. Its usage has evolved significantly over time. The term was introduced initially as a measure of pleasure or happiness within the theory of utilitarianism by moral philosophers such as Jeremy Bentham and John Stuart Mill.
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Yogita Ingle 5 years, 8 months ago
The SI unit of pressure is Pascal (represented as Pa) which is equal to one newton per square metre (N/m-2 or kg m-1s-2). Interestingly, this name was given in 1971. Before that pressure in SI was measured in newtons per square metre.
Posted by Tushar Mann 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
0 is the additive inverse and multiplicative inverse of 0.
Posted by Tushar Mann 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Iris is the circular structure in the eye. Some of the functions of the eyes are :
1. It helps to control the diameter of the eye
2. It controls the size of pupil according to the light intensity.
3. It helps to regulates the amount of light passing on it.
4. It increase the depth of the field.
5. It sharpen the image of any object.
So, iris gives its distinctive color.
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Yogita Ingle 5 years, 8 months ago
- The most common use of coke is as a fuel for stoves, furnaces and blacksmithing. It is sometimes preferred over coal because burning coke produces very little smoke.
- It is also used to produce iron in a blast furnace.
- Coke is used to manufacture steel and many other materials.
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Stomata are the minute openings, generally found in the epidermis of leaves.
Functions of the stomata:
(i) They allow the exchange of gases (CO2 and O2) with the atmosphere.
(ii) Evaporation of water from the leaf surface occurs through the stomata. Thus, the stomata help in the process of transpiration.
Tushar Mann 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
2x -3x (5x+8)
= 2x - 3x(5x) - 3x (8)
= 2x - 15x2 - 24x
= - 15x2 - 22x
Posted by Dilip Kumar Giri 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Technology assists in giving a useful form to a resource for example technology helped to make mobiles which have made life much more easier to everyone. It is now possible to talk, chat and gain entertainment using touch technology on mobiles.
Technology deals with the creation and the use of technical means and their interrelation with life, environment and society. It is a process or an invention of something. The role of technology in human resource development is commendable. E learning has helped human beings to learn many new skills which have assisted in improving the workplace. Office work has become much easier, faster and accurate with the help of technology.
Posted by Kaunain Zaya 5 years, 8 months ago
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Meghna Thapar 5 years, 5 months ago
The spread of the printing press ( c. 1440) The Thirty Years' War (1618–1648) and the Peace of Westphalia (1648) in Europe. The English Civil War (1642–1651), the Glorious Revolution (1688–1689), and the union of Great Britain (1707).
The four periods of history:
- The Ancient Time Period. “In the beginning God created…” The first thing we learn about God is that He is a creator and really, the only true creator. ...
- Medieval and Renaissance Time Period. -400 A.D. – 1600. ...
- Early Modern Time Period. 1600-1850. ...
- The Modern Time Period. 1850-Present.
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Yogita Ingle 5 years, 7 months ago
Gravitational Force
1) It is non-contact force.
2) It is weakest of all forces.
3) It is produced when one of the two masses is very big.
Muscular Force
1) It is contact force.
2) it depends on the force applied by a person.
3) It is the force applied by the muscles of a person to move any object.
Posted by Revathy Mani 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like the Earth or the Moon. It can also be man-made, like the Space Shuttle or the ISS.
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Yogita Ingle 5 years, 8 months ago
Closure property
For two rational numbers say x and y the results of addition, subtraction and multiplication operations give a rational number. We can say that rational numbers are closed under addition, subtraction and multiplication. For example:
- (7/6)+(2/5) = 47/30
- (5/6) – (1/3) = 1/2
Commutative law
For rational numbers, addition and multiplication are commutative.
Commutative law of addition: a+b = b+a
Commutative law of multiplication: a×b = b×a
Associative law
Rational numbers follow the associative property for addition and multiplication.
Suppose x, y and z are rational then for addition: x+(y+z)=(x+y)+z
For multiplication: x(yz)=(xy)z.
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Kriti Tewary 5 years, 8 months ago
1Thank You