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Why do we need pure substances ?...

Why do we need pure substances ?

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The length of an arc `l=rtheta` in this equation `theta` is in radian and not in degrees. Using this equation angular displacement can be converted into a linear displacement.
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ICSE-CIRCULAR MOTION -MODULE 1 (SHORT ANSWER QUESTIONS)
  1. Differentiate between uniform linear motion and uniform circular motio...

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  2. A particle in a circular motion covers a distance of 0.5 pi r where r...

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  3. Why do we need pure substances ?

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  4. The direction of the angular velocity vector is along

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  5. What is the relation connecting linear displacement and angular displa...

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  6. In uniform circular motion

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  7. Which of the following is the correct relation between linear velocity...

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  8. The unit of angular acceleration in the SI system is

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  9. What is the average velocity of a body in uniform circular motion ?

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  10. Find the angular speed of the minute hand of a clock.

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  11. A bus and a car move round a circular road with the same angular veloc...

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  12. What is centripetal acceleration ? Why is it called so ?

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  13. The dimensions of centripetal acceleration is

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  14. What is a centripetal force?

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  15. A passenger in a car moving round a curved road is thrown towards the ...

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  16. Why does an aeroplane tilt while making.a curved flight ?

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  17. Assertion When a car takes a circular turn on a horizontal road, then ...

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  18. Find the acceleration of a particle placed on the surface of the earth...

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  19. Why does mud fly off a rapidly turning wheel ?

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  20. "A mass is attached to one end of a spring and by holding the other en...

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