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Work Energy And Power Free Doubts and Solutions

CBSE - XI Science - Physics - Work, Energy and Power

prove that in an elastic one dimensional collision between two bodies, the relative velocity of approach before collision is equal to the relative velocity of seperation after the collision. Hence derive expressions for the velocities of two bodies in terms of their initial velocities before collision.

Asked by rakeshprasad1112 2nd December 2016, 9:38 PM
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CBSE - XI Science - Physics - Work, Energy and Power

A boat 4*10^10kg of matter per second is converted in to energy in the sun.what is the power out of the sun?

Asked by kuriakose7600 24th November 2015, 1:38 PM
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CBSE - XI Science - Physics - Work, Energy and Power

Derive einstiens mass energy equivalence.

Asked by k.manju2007 2nd September 2015, 8:49 PM
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CBSE - XI Science - Physics - Work, Energy and Power

SIR IS RELATIVISTIC AND REST MASS ARE TWO DIFFERENT MASSES IF YES EXPLAIN WITH THE THEORY OF RELATIVITY AND WHY WE CONSIDER REST MASS ONLY.

Asked by JAIBHARGAVA200 3rd November 2014, 8:18 PM
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CBSE - XI Science - Physics - Work, Energy and Power

A n space o b j e c t space o f space m a s s space m space i s space t i e d space t o space a space s t r i n g space o f space l e n g t h space l space a n d space a space v a r i a b l e space f o r c e space F space i s space a p p l i e d space o n space i t space w h i c h space b r i n g s space t h e space s t r i n g space g r a d u a l l y space a t space a n g l e space theta space w i t h space t h e space v e r t i c a l. space F i n d space t h e space w o r k space d o n e space b y space t h e space f o r c e space F. space

Asked by medha painuly 14th October 2014, 12:22 PM
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CBSE - XI Science - Physics - Work, Energy and Power

Define perfectly inelastic collision. Show that kinetic energy for perfectly inelastic collision is not conserved.

Asked by Sayoni Maiti 8th October 2014, 5:28 PM
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CBSE - XI Science - Physics - Work, Energy and Power

Why intermolecular energy is more in colder objects than in hotter objects?

Asked by Vineeth K 12th September 2014, 9:02 AM
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CBSE - XI Science - Physics - Work, Energy and Power

 

Asked by aashish 17th May 2014, 3:19 PM
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CBSE - XI Science - Physics - Work, Energy and Power

Action and reaction pair 

(A) act on two different objects

(B) have equal magnitude

(C) have opposite directions 

(D) have same directions

Asked by Yash Sahu 16th April 2014, 11:30 AM
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CBSE - XI Science - Physics - Work, Energy and Power

 

Asked by Pavani L 14th April 2014, 7:44 PM
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