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Gaurav Seth 5 years ago
Q: Water flows out through a circular pipe whose internal diameter is 2 cm @ 6 m/ s into a cyl. tank, the radius of whose base is 60 cm,find the rise in level of water in 30 mins ?
A n s w e r:
Ans
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Bani Singh Bani Singh 5 years ago
Gaurav Seth 5 years ago
Non-contact Forces : The force experienced by the bodies even without being physically touched, are called non-contact forces. e.g. Gravitational force, Magnetic force.
Posted by Nikhil Kumar 5 years ago
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Shreya Jha 4 years, 11 months ago
Bani Singh Bani Singh 5 years ago
Gaurav Seth 5 years ago
Contact Forces : The forces which are applied on bodies by making a physical contact with them, are called contact forces. e.g. the force of friction (frictional force), normal reqction force
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Gaurav Seth 5 years ago
Total number of students=340
Percentage of science student=55%
Percentage of commerce student=(100-55)%
=45%
Number of commerce student=45/100*340
=153
Or
Number of Science students
= 340 x 55 / 100 = 187.
∴ Number of students of Commerce
= 340 – 187 = 153.
Posted by Bhumika Choudhary 5 years ago
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Gaurav Seth 5 years ago
(a) Saloni should add some water in the test tube in which gas was collected. Shake the test tube and then bring a litmus paper near the test tube.The solution will turn litmus paper red. This shows that the gas is acidic.
(b)Charcoal contains carbon which on burning forms carbon dioxide gas.
C+O_2→CO_2C+O2→CO2
The gas evolved is collected in a test tube and water is added to it.
CO_2+H_2O→H_2CO_3CO2+H2O→H2CO3
Posted by Md Arshad 5 years ago
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Shreya Jha 4 years, 11 months ago
Shreya Jha 4 years, 11 months ago
Banarasiya Don???? 5 years ago
Gaurav Seth 5 years ago
In order to provide food for a large population – regular production, proper management and distribution of food is necessary.
Crop: When plants of the same kind are grown and cultivated at one place on a large scale, it is called a crop.
- In India, crops can be broadly categorised into two types based on seasons – Rabi and Kharif crops.
- Sowing of seeds at appropriate depths and distances gives good yield. Good variety of seeds are sown after selection of healthy seeds. Sowing is done by seed drills.
- Soil needs replenishment and enrichment through the use of organic manure and fertilisers. Use of chemical fertilisers has increased tremendously with the introduction of new crop varieties.
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<a data-ved="2ahUKEwjp8o747-rtAhXWTX0KHZmVBUYQFjAAegQIBRAC" href="https://mycbseguide.com/blog/cbse-class-8-science-revision-notes/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/cbse-class-8-science-revision-notes/&ved=2ahUKEwjp8o747-rtAhXWTX0KHZmVBUYQFjAAegQIBRAC" rel="noopener" target="_blank">CBSE Class 8 Science Revision Notes | myCBSEguide ...</a>
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Gargi Bhiwapurkar 2 years, 9 months ago
Posted by Banarasiya Don???? 5 years ago
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Gaurav Seth 5 years ago
Incident ray : Incident ray is define as that ray of light which falls on the mirror surface. Here AO is the incident ray.
⇒Reflected ray : The ray of light which is sent back by the mirror is known as reflected ray. Here OB is the reflected ray.
⇒Point of incidence : The point at which incident ray falls on the mirror is called point of incident . Here o is the point of incidence.
⇒Normal : The normal is the line at right angle to the mirror surface at the point of incidence.
⇒Angle of incidence : This is the angle made by the incident ray with the normal at the point of incidence.
⇒Angle of reflection : This is the angle made by the reflected ray with the normal at the point of incident.
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Posted by Pranjal Kushwaha 5 years ago
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Posted by Tanupreet Kaur 5 years ago
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Nakshi Shah 5 years ago
Gaurav Seth 5 years ago
let the breadth be x
let the length be x+8
perimeter of rectangle=2 (length +breadth)
so, 2 (x+x+8)=44cm
=2 (2x+8)=44
=4x + 16=44
=4x= 44-16
=4x= 28
=x = 28÷4
=x= 7
therefore,
breadth is 7 (x)
length is 7+8 (x+8)
=15
Posted by Tanupreet Kaur 5 years ago
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Aryaman Pandey 5 years ago
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Aaruhi Shukla 5 years ago
Gaurav Seth 5 years ago
INTRODUCTION TO VISUAL BASIC
Visual Basic is a high-level programming language that offers a Graphical User Interface for designing and developing programs as compared to QBASIC that offers a text-only environment. Visual Basic offers an Integrated Development Environment (IDE) for writing programs. An IDE provides a common environment for designing, editing and removing errors in the programs.
Visual Basic is also referred to as an event-driven programming language. An event is the occurrence of some user-generated actions such as click and keypress. In Visual Basic, the code statements are executed in response to events
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Shruti ? 5 years ago
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