CBSE > Class 11 > Physics | CBSE Board | Homework Help

Rotational inertia, or the moment-of-inertia (MOI) is a measure of how difficult it is to change the rotational velocity of an object which is rotating about a pivot point. The larger the moment-of-inertia, the more difficult it is to change the rotational speed of the object.

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Prove that the gravitational force is a conservative force ?

Posted by Abheer Rajput 3 years, 9 months ago

CBSE > Class 11 > Physics

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when does class 11 exam will be conducted

Posted by Brajbhushan Aditya 3 years, 9 months ago

CBSE > Class 11 > Physics

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Uttkarsh Joshi 3 years, 9 months ago

I think 2 march

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What is the apperant weight felt by a person in an elevator when it is accelerating 1.upwards by a 2.downwards by a

Posted by Yamini Singh 3 years, 9 months ago

CBSE > Class 11 > Physics

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Monu Kumar 3 years, 9 months ago

Ans is 3

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Define projectile motion and define expression for time of flight , horizontal range and max height

Posted by Janvi Gupta 3 years, 9 months ago

CBSE > Class 11 > Physics

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Abheer Rajput 3 years, 9 months ago

Projectile motion = A motion experienced by an object or particle that is projected near earth surface and moves along a curved path under the action of gravity.

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Dimensional analysis applications

Posted by Ramya Kumar 3 years, 9 months ago

CBSE > Class 11 > Physics

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Can we design an aeroplane which is very light but sufficiently strong ?

Posted by Jaspreet Kaur 3 years, 9 months ago

CBSE > Class 11 > Physics

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Jansi Sabharwal 3 years, 9 months ago

Yes we can With aluminium as aluminium is light in weight and it is a strong metal.

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A person of mass 60kg lift a stone of 20kg to a height of 30meter. Calculate work done by person.

Posted by Deeksha Deora 3 years, 9 months ago

CBSE > Class 11 > Physics

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Tanisha Verma 3 years, 9 months ago

M=60+20=80Kg H=30m g=10 W=m×g × h =80×10×30 =24000J

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When a particle moving forward to the constant speed in the download with speed of 20m/sec then find the displacement and distance covered by the particle in t/5second

Posted by Rahul Kumawat I 3 years, 9 months ago

CBSE > Class 11 > Physics

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What is coefficient of liner expansion

Posted by Himanshu Swami 3 years, 9 months ago

CBSE > Class 11 > Physics

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Raunak Chauhan 3 years, 9 months ago

C of linear expansion is defined as the expansion take place in a 1meter rod at 1℃

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Derivation of average kinetic energy per molecule of the gas

Posted by Himani Rajput 3 years, 9 months ago

CBSE > Class 11 > Physics

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brief discuss about any 3 international competition of althetes

Posted by Kirandeep Sandhu 3 years, 9 months ago

CBSE > Class 11 > Physics

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Which question bank is correct cbse imp. Question or cbse text

Posted by Praveen Kumar 3 years, 9 months ago

CBSE > Class 11 > Physics

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Define Physics..???

Posted by ?Ritesh Gupta? 3 years, 9 months ago

CBSE > Class 11 > Physics

3 answers

Ankur Yadav 3 years, 7 months ago

Physics is simply a study of nature

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Tec Om 3 years, 9 months ago

physics is the collection of laws or theories through which we can explain natural as well as artificial phenomenon ."""""it is not just a natural science as our friend said"""""

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Priya ? Raj 3 years, 9 months ago

Physics is the natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force.

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Chapter 2 derivatives

Posted by Anurag Chhetri 3 years, 9 months ago

CBSE > Class 11 > Physics