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LAKHMIR SINGH & MANJIT KAUR-FRICTION-EXERCISE
- How will you reduce friction between those machine parts which rub ag...
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- What is meant by lubriication ? Why is it important ?
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- Explain why , wheels are so useful.
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- Why are lubricants (oil or greses) applied to rubbing surface of machi...
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- Explain, how the use of oil reduces friction between two surface in co...
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- Why are cars, aeroplanes and rockets streamlined ?
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- The equation (cos p-1) x^(2) + cos p*x + sin p = 0 where x is a varia...
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- What are fluids ?
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- Name two common fluids.
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- Define friction. What are the facrtors affecting friction ? Explain wi...
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- What is the cause of friction ? Explain with the help of labelled diag...
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- Give a example to show that friction depends on the nature of two surf...
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- What is the difference between static friction and sliding friction ? ...
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- How can a very heavy machine be moved conveniently from one place to a...
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- What is drag ?
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- The coordinates of A and B are
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- How can you reduce the drag on something moving through the air ?
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- What is meant by 'streamlined shape' ?
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- The fast moving vehicles are given streamline shape . Why ?
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- A boy runs his toy can on dry marble floor, wet marble floor, newspape...
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