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Explain why bullets of gun are cylinder ...

Explain why bullets of gun are cylinder in shape ?

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Spinning cylinder moves in straight path in the direction of its rotational axis ,so magnus effect cannot be oberved and hence cylinder is not deviated from its original path .For this reason bullets of gun are cylinder in shape.
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KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION -C (Objective Questions) (VSQs)
  1. Explain why roof of building flyout during stormy wind.

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  2. Why does an airplane run a certain length on the runway first before t...

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  3. Explain why bullets of gun are cylinder in shape ?

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  4. What is magnus effect ?

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  5. Give reason why mercury does not wet glass .

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  6. Why free surface of liquid tend to contract their surface ?

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  7. When drops of mercury are placed on a clean surfaces of glass , they m...

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  8. Give reason why are some insects able to walk on water surface ?

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  9. Why surface tension of antiseptics kept less ?

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  10. Explain why is hot soup more testy than the colder one ?

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  11. It is better to wash clothes in hot water than in cold water .Explain ...

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  12. Detergents is added to water for removing dirt from clothes.Explain .

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  13. Why colours and lubricating oil have less surface tension ?

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  14. Arrange the following liquids in increasing order of surface tension ....

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  15. If a liquid does wet the surface ,its angle of contact is acute or obt...

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  16. Liquid is stick to the glass then angle of contact for liquid glass wi...

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  17. On what factors does the value of angle of contact depend ?

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  18. How angle of contact depend on temperature ?

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  19. Why tefllon is coated ,the angle of contact between oil and non -stick...

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  20. Why raincoat does not wet in rain ?

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