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CBSE Notes 2011-2012 » IX-Science-Term2

Work and Energy

Two cars A of 25 kg and B of 50 kg moving with a speed of 25 m/s and 10 m/s in the same direction un...

Multiple choice question

Two cars A of 25 kg and B of 50 kg moving with a
speed of 25 m/s and 10 m/s in the same direction
undergo collision. If A gets a velocity of 5 ms_1 in
the same direction after the collision, the K.E. of
the car B is,

In a collision,

Multiple choice question

In a collision,

Which of the following energy cannot be completely converted into other forms due to the transmissio...

Multiple choice question

Which of the following energy cannot be completely
converted into other forms due to the transmission
system ?

On a 5000 g mass a force of 3 N acts at an angle of 60

Multiple choice question

On a 5000 g mass a force of 3 N acts at an angle of
60

In an oscillating simple pendulum,

Multiple choice question

In an oscillating simple pendulum,

A microphone converts sound energy to

Multiple choice question

A microphone converts sound energy to

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