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Friction: When one surface is moving over another surface, a force comes into play and opposes their relative motion. This force is called friction or force of friction. Friction always opposes motion because it acts in opposite direction to motion. Force of friction arises due to contact between two surfaces. If there is no contact between two surfaces there would be no friction.

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What is rayon? How is rayon made?

Posted by Neetu Gupta 7 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Sourasish Paul 7 years, 3 months ago

A fibre was obtained by chemical treatment of woodpulp which was called rayon. Rayon is made by chemical treatment of woodpulp.

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Summary of lesson the school boy

Posted by Jatin Kurrey 7 years, 3 months ago

CBSE > Class 08 > English

1 answers

Harshita Singh 7 years, 3 months ago

He dont want to go school because in the summer morn the day was very nice and school is so boring for him. He compare him self with a bird who is in cage

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Find the number of coins 1.5cm in diameter and 2mm thick to be melted to form a right circular cylinder of radius 2.25cm and height 10cm

Posted by Abhav Mittal 7 years, 3 months ago

CBSE > Class 08 > Mathematics

0 answers

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What is lubricant? And can we reduce friction to zero by polishing or lubrication the surface of an object

Posted by Om Prakash Sharma 7 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

Lubricants are substances used to reduce friction between two surfaces in contact with each other. Example: oil, grease, etc.
Friction can be reduced by polishing surfaces or using large amount of lubricants such as oil, water, or grease but we cannot reduce friction to zero. Friction exists at even atomic levels too. We cannot completely eliminate friction.

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Ravi walks around a square field of area 841 by 324 m square find the distance covered by Ravi in 2 rounds of the field

Posted by J Shri Swathika 7 years, 3 months ago

CBSE > Class 08 > Mathematics

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What is square of 40

Posted by Ayush Jaiswal 7 years, 3 months ago

CBSE > Class 08 > Mathematics

5 answers

Ashwini Kajava 7 years, 3 months ago

1600

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Tanishk Rathore 7 years, 3 months ago

40×40=1600

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Suhail Khan 7 years, 3 months ago

1600

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Hdjf Kumari 7 years, 3 months ago

40*40=1600

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Aashi Chaudhary 7 years, 3 months ago

Square of 40 is 1600

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Square root of 12121219

Posted by Arpit Gupta 7 years, 3 months ago

CBSE > Class 08 > Mathematics

2 answers

Riya Agrawal 7 years, 3 months ago

3481.554

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Hdjf Kumari 7 years, 3 months ago

3481.554

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Tell at- least 60 words without A in 15 seconds

Posted by Khusubu Subudhi 7 years, 3 months ago

CBSE > Class 08 > Other Subjects

1 answers

Shankaranand Choudhary 7 years, 3 months ago

One Two Three-------------Fifty nine Sixty

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What is the full form of GRAMMAR ?

Posted by Khusubu Subudhi 7 years, 3 months ago

CBSE > Class 08 > Other Subjects

2 answers

Khusubu Subudhi 6 years, 10 months ago

No it's not right but there is a full from of GRAMMAR

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Harshita Singh 7 years, 3 months ago

G. Growth R real A attitude M man M mind A ample R range But I think grammar has no full form it is a complete word.......

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Means of akbar

Posted by Kanishka Chauhan 7 years, 3 months ago

CBSE > Class 08 > हिंदी

1 answers

Kanishka Chauhan 7 years, 3 months ago

Aallah

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Why beitish want to rule us ?

Posted by Omprakash Panda 7 years, 3 months ago

CBSE > Class 08 > Social Science

1 answers

Riya Agrawal 7 years, 3 months ago

Because they want more and more from India and other countries....And they also want some products which were in demand for Europeans .

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Four kinds of sound

Posted by Kratagya Rathore 7 years, 3 months ago

CBSE > Class 08 > Science

0 answers

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Extra questions

Posted by Isha Dhiman 7 years, 3 months ago

CBSE > Class 08 > English

0 answers

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Difference between regular and irregular reflections

Posted by Gurleen Kaur 7 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Virendra Kumar 7 years, 3 months ago

Winner Bhim of Pidilite is indicate on a smooth and plane surface of reflection Raval all song of well done this types of reflection is called regular reflection

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6+70000+86789

Posted by Karan Badola 7 years, 3 months ago

CBSE > Class 08 > Mathematics

1 answers

Abhinav Pandey 7 years, 3 months ago

1567895

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Are you satisfied with your attitude and behaviour but why

Posted by Sneha Agarwal 7 years, 3 months ago

CBSE > Class 08 > Other Subjects

0 answers

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What is the need to use a coverslip while making a slide

Posted by Vivek Kumar 7 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

The main function of the cover slip is to keep solid specimens pressed flat, and liquid samples shaped into a flat layer of even thickness. The cover slip can be glued to the slide so as to seal off the specimen, retarding dehydration and oxidation of the specimen. This smaller sheet of glass, called a cover slip or cover glass, is usually between 18 and 25 mm on a side. The cover glass serves two purposes: (1) it protects the microscope's objective lens from contacting the specimen, and (2) it creates an even thickness (in wet mounts) for viewing.

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what are real numbers

Posted by Pooja Pooja 7 years, 3 months ago

CBSE > Class 08 > Mathematics

0 answers

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Active to passive

Posted by Rudra Tansariya 7 years, 3 months ago

CBSE > Class 08 > English

1 answers

Rudra Tansariya 7 years, 3 months ago

Active to Passive

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Jack went to a shed on his horse on friday and after staying there for 2 days he returned back on friday how is that possible? Its a simple question nd the answer is also simple.

Posted by Kushal P Borana 7 years, 4 months ago

CBSE > Class 08 > Other Subjects

2 answers

Ashwini Kajava 7 years, 3 months ago

Horse's name was Friday

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Faathimah Tuzzahrah 7 years, 3 months ago

The name of the horse was Friday .

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887654321*12345

Posted by Krish Shah 7 years, 4 months ago

CBSE > Class 08 > Mathematics

3 answers

Tanishk Rathore 7 years, 3 months ago

1.09580926e13

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Gaura Agarwal 7 years, 4 months ago

U can calculate this with the help of calculator

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Krish Shah 7 years, 4 months ago

ઋઠૃડૅડટ

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Write the absolute value of -7\8

Posted by Lisharani Dutta 7 years, 4 months ago

CBSE > Class 08 > Mathematics

1 answers

Lisharani Dutta 7 years, 4 months ago

-7\8

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Differentiate between audible and inaudible sounds

Posted by Vincy Dodeja 7 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

Audible sounds are sounds of frequency which are audible to human ear. However, on the other hand, inaudible sounds are those sounds who have frequency not audible for human ear. The frequency of audible sounds is usually 20-20,000 hertz, while that of inaudible is above 20kHz(kiloHertz). The human ear can easily detect frequencies between 20 Hz and 20 KHz. Hence sound waves with frequency ranging from 20 Hz to 20 KHz is known are audible sound. The human ear is sensitive to every minute pressure difference in the air if they are in the audible frequency range.

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Find the number of digite in the square root of the following numbers without any calculation 64

Posted by Laxman Rao 7 years, 4 months ago

CBSE > Class 08 > Mathematics