State and define SI unit of power
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2
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2674
|
June 12, 2019
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Which of the following potential energy curves in figure
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1
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2062
|
December 24, 2016
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A boy of mass 50 kg runs up a staircase of 45 steps in 9 s
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3
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16649
|
January 28, 2018
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In an elastic collision of two billiard balls
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1
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6005
|
December 24, 2016
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State if each of the following statements is true or false
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1
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2918
|
December 24, 2016
|
A trolley of mass 200 kg moves with a uniform speed
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1
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3170
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December 24, 2016
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Two identical ball bearings in contact with each other
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1
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1281
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December 24, 2016
|
A family uses 8 kW of power
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1
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1385
|
December 24, 2016
|
A bullet of mass 0.012 kg and horizontal speed 70 m
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1
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3252
|
December 24, 2016
|
The bob A of a pendulum released
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1
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1006
|
December 24, 2016
|
A molecule in a gas container hits a horizontal wall with speed 200 m
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1
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837
|
December 24, 2016
|
The casing of a rocket in flight burns up due to friction
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1
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4502
|
December 24, 2016
|
If momentum of a body increased by 300%, then what will be percentage increase in momentum of a body?
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0
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4391
|
December 24, 2016
|
A vertical spring with constant 200 N/m has a light platform on its top
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1
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3444
|
December 24, 2016
|
A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of 7 m
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1
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1589
|
December 24, 2016
|
A body of mass 0.3 kg is taken up an inclined plane length 10 m and height 5 m
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1
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16134
|
December 24, 2016
|
The sign of work done by force on a body is important to understand
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1
|
3199
|
December 24, 2016
|
A trolley of mass 300 kg carrying a sand bag of 25 kg is moving uniformly
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1
|
2931
|
December 24, 2016
|
In a game of tug of war, one team is slowly giving way to the other
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1
|
3039
|
December 24, 2016
|
Find the KE of the boy of 40 kg
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1
|
802
|
November 28, 2016
|
Why does a saw become warm when it is used to cut a log of wood?
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1
|
5118
|
November 28, 2016
|
A girl pulls a toy with a force of 100 N
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1
|
960
|
November 28, 2016
|
A vehicle of 1 tonne travelling with a speed of 60 m/s
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1
|
6799
|
November 28, 2016
|
A body of mass 20 kg is raised to the top of a building
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1
|
3190
|
November 28, 2016
|
Name two forms of mechanical energy
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1
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4639
|
November 28, 2016
|
Calculate the electricity bill amount for a month of April
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1
|
18150
|
November 28, 2016
|
Describe the energy changes involved in the process
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1
|
748
|
November 28, 2016
|
What is commercial unit of energy?
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1
|
5189
|
November 28, 2016
|
Define kinetic energy of an object
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1
|
3307
|
November 28, 2016
|
Discuss whether or not work is done in the following cases
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1
|
3047
|
November 28, 2016
|