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Posted by Yuvraj Soni 5 years, 1 month ago (10050407)
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Yogita Ingle 5 years, 1 month ago (2577571)
Contact force is a force that is applied by objects in contact with each other. The contact force acts on a point of direct contact between the two objects. This force can either be continuous as a continuous force or can be momentary in the form of an impulse.Contact force is responsible for most of the interactions we experience in daily life.
Posted by Vinay Kamal 5 years, 1 month ago (9853188)
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Suraj Sahni 4 years, 11 months ago (10142257)
Posted by Vinay Kamal 5 years, 1 month ago (9853188)
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Posted by Vinay Kamal 5 years, 1 month ago (9853188)
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Posted by Shlok Malik 5 years, 1 month ago (10069223)
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Posted by Kavya Rajput 5 years, 1 month ago (10069064)
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Posted by Shaik Samreen 5 years, 1 month ago (10049848)
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Yogita Ingle 5 years, 1 month ago (2577571)
System Restore is a Microsoft® Windows® tool designed to protect and repair the computer software. System Restore takes a "snapshot" of the some system files and the Windows registry and saves them as Restore Points. When an install failure or data corruption occurs, System Restore can return a system to working condition without you having to reinstall the operating system. It repairs the Windows environment by reverting back to the files and settings that were saved in the restore point.
Posted by Anselam Toppo 5 years, 1 month ago (9698950)
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Posted by Yash Vardhan 5 years, 1 month ago (10069043)
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Laxmi S.P? 5 years, 1 month ago (9890424)
Rashi - 5 years, 1 month ago (10076051)
Madhu Mitha 5 years, 1 month ago (10074897)
Posted by Nobel Princy 5 years, 1 month ago (9266487)
- 2 answers
Trisha Rai 5 years, 1 month ago (9602310)
Yogita Ingle 5 years, 1 month ago (2577571)
The school-going boy in this story is in fifth standard .
He is an obedient and meritorious student from a well-to-do Muslim family . One day he goes to school with four rupees in his pocket in order to pay the school fee.
As the teacher -concerned is on leave that day , the boy spends all the four rupees in buying and eating jalebis . Actually the boy is not interested in the jalebis sold in the bazaar . But the coins in his pocket persuade and get him excited to buy and eat jalebis with the fee money . The coins suggest the boy that he could pay The fee with his scholarship money that is to be received the following day .
The next day in school he is asked to pay the fee and it is informed that the scholarship money would be given the following month . With this shocking news he feels confused and defeated . He is afraid of his class teacher and tries to escape from school without being noticed by anybody . He goes to the Railway station only to spend time till the evening .
Sitting under the tree the boy prays to God to send four rupees for him by His Farishta . He admitted his wrong and promises that he will not repeat the same again in future . But he receives nothing from God .
The next day also the boy comes to the same spot near the Railway station . The starts requesting God only for four rupees . He tries his best to prove before God that he is God – fearing , disciplined , hard working and obedient one . He goes on persuading God till the evening in vain . Then he decides to come to the same place the next day in order to observe Namaz to Allah Miyan very strictly after washing his body and changing clothes . Meanwhile his parents get the news of his continuous absence in school . We can imagine what happens afterwards .But the boy , up to his class VIII , is not able to understand as to why God has not given him a single paisa . What loss He suffers from with the help of only four rupees to an innocent and devoted child like him .
When the boy gets his maturity he finally understands that if Allah Miyan were to provide all for the asking , then man would even today be living in nests like vultures and crows and would not have learnt the art of making jalebis .
This interesting story reveals us how an obedient boy is easily excited to do something wrong innocently . It also tells us to be responsible and kind enough towards small children .
Posted by Goutami Rayannavar Vinayak Teju 5 years, 1 month ago (10068887)
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Posted by H. K 5 years, 1 month ago (11130154)
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Rajneesh Payal 4 years, 10 months ago (7056657)
Posted by Goutami Rayannavar Vinayak Teju 5 years, 1 month ago (10068887)
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Posted by Rani Swain 5 years, 1 month ago (3818574)
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Posted by Mansi 😊 5 years, 1 month ago (8856106)
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Posted by Alpona Sultana 5 years, 1 month ago (9895784)
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Posted by Aman Pal 5 years, 1 month ago (9933252)
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Posted by Arvind Kumar 5 years, 1 month ago (10051471)
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Posted by Ashu Singh 5 years, 1 month ago (10068541)
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Posted by Ashu Singh 5 years, 1 month ago (10068541)
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Posted by Jesu Jabasing 5 years, 1 month ago (10067148)
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Posted by Deeksha Bishnoi 5 years, 1 month ago (10073986)
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Posted by Shiva Verma 5 years, 1 month ago (10068635)
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Posted by Priya Arora 4 years, 7 months ago (10032924)
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Sia ? 4 years, 7 months ago (6945213)
Anoxia happens when your body or brain completely loses its oxygen supply. Anoxia is usually a result of hypoxia. This means that a part of your body doesn't have enough oxygen. When your body is harmed by a lack of oxygen, it's called a hypoxic-anoxic injury.
Posted by Kavya Gupta 5 years, 1 month ago (9988335)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Case 1 - Potential Energy due to two charges : Consider two charges q1 and q2 with position vector r1 and r2 relative to some origin. Consider the charges q1 and q2 initially at infinity and determine the work done by an external agency to bring the charges to the given locations. Suppose, first the charge q1 is brought from infinity to the point vector r1. There is no external field against which work needs to be done, so work done in bringing q1 from infinity to vector r1 is zero. This charge produces a potential in space given by
where r1P is the distance of a point P in space from the location of q1. From the definition of potential, work done in bringing charge q2 from infinity to the point vector r2 is q2 times the potential at vector r2 due to q1:
Work done on q2
where r12 is the distance between points 1 and 2.
Since electrostatic force is conservative, this work gets stored in the form of potential energy of the system. Thus, the potential energy of a system of two charges q1 and q2 is
Obviously, if q2 was brought first to its present location and q1 brought later, the potential energy U would be the same.
Case 2 : Potential Energy due to three charges :
Let us calculate the potential energy of a system of three charges q1, q2 and q3 located at vector r1, r2, r3, respectively. To bring q1 first from infinity to vector r1, no work is required. Next we bring q2 from infinity to vector r2. As before, work done in this step is
The charges q1 and q2 produce a potential, which at any point P is given by
Work done next in bringing q3 from infinity to the point vector r3 is q3 times V1,2 at vector r3
The total work done in assembling the charges at the given locations is obtained by adding the work done in different steps [Eq. (4) and Eq. (6)],
The potential energy is characteristic of the present state of configuration, and not the way the state is achieved.Read more on Sarthaks.com - https://www.sarthaks.com/424469/derive-an-expression-electric-potential-energy-of-a-system-of-charges
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Yuvraj Soni 5 years ago (10050407)
1 Thank You