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Why does ice oat in water ?...

Why does ice oat in water ?

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LAKHMIR SINGH & MANJIT KAUR-GRAVITATION-Exercise
  1. What name is given to trust per unit area ?

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  2. What is meant by the term buoyancy ?

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  3. Why does ice oat in water ?

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  4. What force acting on an area of 0.5 m^2 will produce a pressure of 500...

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  5. An object of weight 200 N is floating in a liquid. What is the magnitu...

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  6. Name the scientist who gave the magnitude of buoyant force acting on a...

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  7. The density of gold is 19 g //cm^(2). Find the volume of 95 g of gold.

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  8. What is the mass of 5m^(3) of cement of density 3000 kg //m^(3) ?

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  9. Wjhat is the density of a substance of mass 100 g and volume 10 cm^(3)

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  10. The density of a body is 800 kg // m^(3).Will it sink of float when di...

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  11. (a ) what is the difference between the density and relative density ...

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  12. Define thrust .What is its units ?

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  13. Why do we feel light on our feet when standing in a swimming pool with...

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  14. Explain why,big boulders can be moved easily by flood ?

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  15. An iron nail sinks in water but it floats in mercury. Why ?

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  16. Expain why, a piece of glass sinks in water but it floats in mercury.

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  17. Steel sinks in water but a steel boat floats .why ?

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  18. Explain why, school bags are provided with wide straps to carry them.

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  19. Why does a sharp knife cut object more effectively than a blunt knife ...

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  20. Explain why a wide steel belt is provided over the wheels of an army ...

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