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why ice floats on water?

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  • PHYSICAL ENVIRONMENT (FORCES ACTIVE WITHOUT CONTACT)

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JNAN PUBLICATION-PHYSICAL ENVIRONMENT (FORCE AND PRESSURE)-EXAMPLE
  1. Give some example to support the statement that ' friction is importan...

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  2. Why sole of shoes are grooved?

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  3. Mention Newton's first law of motion.

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  4. Mention Newton's second law of motion.

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  5. Mention Newton's third law of motion.

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  6. Describe Archimede's principle.

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  7. How will you proof that when an a object is immersed in water the obje...

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  8. What are factors that effect the upthrust?

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  9. why the walls of dams at the base are made thicker?

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  10. Define the term thrust and pressure. What is the relation between them...

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  11. why ice floats on water?

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  12. what are the different types of friction?

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  13. Mass of an object is 5 gram and force of 10 dyne is exerted upon it . ...

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  14. Mass of an object is 2kg . What would its weight?

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  15. Calculate the pressure at the bottom of a fresh water lake of depth 10...

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  16. If density if mercury is 13.6gm//cm^3then find the mass of 1 lit merur...

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  17. Find out the pressure of 10 cm deep water column.

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  18. Find the value of standard atmospheric pressure of 76cm mercury column...

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  19. If water is kept instead of mecrury in barometer then find out the hei...

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  20. A square plate of side 10 cm is placed horizontally 1 m below the surf...

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