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- A bullet of mass 10 g is fired at a speed of 400 m s-1 from a gun of mass 4 kg. What is the recoil velocity of the gun?
- Echo is one of the phenomena of reflection of sound. When we go to the mountain top and shout loudly, we hear our own sound after sometime.
- A scooter moving at a speed of 10 m/s is stopped by applying brakes which produc a uniform acceleration of, -0.5 m/s2. How much distance will be covered by the scooter before it stops?
- The sound energy has wide application in medical science, as well as in many other fields. The sound of high frequency used in medical science is called ultrasound.
- We can hear music or some one speaking to us, because of the sound produced in the medium. If we go to the space, we will not be able to hear anything. How is sound produced in the medium?
- The sound from our ear is carried to our brain, Where it is interrupted and we are able to hear and identify the sounds. Which part of the ear carries the sound message to the brain?
- A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with uniform acceleration for
- For how long should a force of 50 N act on a body of 10 kg so that it acquires a velocity of 100 m/s?
- Explain how is sound produced by your school bell?
- What is Sound And How is it Produced?
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