|
A truck and a car moving with the same K.E. on a straight road. Their engine are simultaneously switched off. Which one will stop at a lesser distance?
|
|
0
|
2539
|
August 18, 2016
|
|
What would be the effect on the potential energy of the system of two electrons brought closer?
|
|
0
|
1042
|
August 18, 2016
|
|
How fast moving neutrons can be quickly slowed down by passing through heavy water?
|
|
0
|
2369
|
August 18, 2016
|
|
Nuclear fission and fusion reactions are the examples of conversion of mass into energy. Can we say that strictly speaking, mass is converted into energy even in the exothermic chemical reaction?
|
|
0
|
987
|
August 18, 2016
|
|
Is collision possible even without actual contact of the colliding particles?
|
|
0
|
2368
|
August 18, 2016
|
|
What went wrong at the Soviet atomic power station at Chernobyl?
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|
0
|
441
|
August 18, 2016
|
|
In a thermal station, coal is used for the generation of electricity
|
|
1
|
461
|
August 18, 2016
|
|
An aeroplane's velocity is doubled
|
|
1
|
4698
|
August 18, 2016
|
|
A mass m is fixed to the lower most point of spring kept in vertical direction which is stretched slowly by a length
|
|
1
|
445
|
August 18, 2016
|
|
Body ${{B}_{1}}$ collides with body ${{B}_{2}}$ of same mass but at rest, what will happen to them?
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|
0
|
417
|
August 18, 2016
|
|
Give conditions for elastic collision
|
|
0
|
4632
|
August 18, 2016
|
|
What are the limitations of work energy theorem?
|
|
0
|
3112
|
August 18, 2016
|
|
Find the average resistance offered by the mud wall
|
|
1
|
1505
|
August 18, 2016
|
|
Is kinetic energy a scalar or a vector ? Give its S.I. unit and dimensional formula
|
|
0
|
1259
|
August 18, 2016
|
|
Out of joule, calorie, kilo watt and electron volt, which one is not the unit of energy?
|
|
0
|
832
|
August 18, 2016
|
|
What type of energy is stored in the spring of a watch?
|
|
0
|
4555
|
August 18, 2016
|
|
In case of a moving body, as force of friction is p mg, can we regard /urngx as potential energy similar to mgh?
|
|
0
|
987
|
August 18, 2016
|
|
A shot fired from a gun cannot explodes in the air. What will be the change in momentum and K.E.?
|
|
0
|
370
|
August 18, 2016
|
|
Can a body with momentum?
|
|
0
|
422
|
August 18, 2016
|
|
When an air bubble rises in water, what happens to its potential energy?
|
|
0
|
2263
|
August 18, 2016
|
|
Can the kinetic energy be increased without the application of an external force ? If yes, give an example
|
|
0
|
1056
|
August 18, 2016
|
|
How is the kinetic energy of a particle related to the direction of motion of the particle ? Can K.E. be negative?
|
|
0
|
1530
|
August 18, 2016
|
|
The momentum of a body is increased by 50%. What is the percentage change in its K.E.?
|
|
0
|
3501
|
August 18, 2016
|
|
Can P.E. of an object be negative?
|
|
0
|
477
|
August 18, 2016
|
|
Is whole of K.E. lost in any perfectly inelastic collision?
|
|
0
|
656
|
August 18, 2016
|
|
In which motion, momentum changes but not the K.E.?
|
|
0
|
1267
|
August 18, 2016
|
|
Can a body have energy without momentum?
|
|
0
|
619
|
August 18, 2016
|
|
What type of energy is stored in the spring of watch?
|
|
0
|
917
|
August 18, 2016
|
|
Can a body have momentum without energy?
|
|
0
|
1813
|
August 18, 2016
|
|
Does the P.E. of a spring decreases/increases when it is compressed or stretched ? Why?
|
|
0
|
466
|
August 18, 2016
|