TyroCity

# grade11

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A body is moving in a circular path with constant speed. Is this motion a simple harmonic?

A body is moving in a circular path with constant speed. Is this motion a simple harmonic?

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If a cork is released from the bottom of a jar filled with water, what will happen and why?

If a cork is released from the bottom of a jar filled with water, what will happen and why?

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Does a ship sink more in river water or in sea water? Explain.

Does a ship sink more in river water or in sea water? Explain.

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Steel balls sink in water but they don’t sink in mercury. Why?

Steel balls sink in water but they don’t sink in mercury. Why?

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Why is easier to lift a body in a liquid than in air?

Why is easier to lift a body in a liquid than in air?

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A cork is floating in water. What is the apparent weight of the cork?

A cork is floating in water. What is the apparent weight of the cork?

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Why is the bottom of a ship made heavy?

Why is the bottom of a ship made heavy?

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How will you make difference between density and specific gravity of a body?

How will you make difference between density and specific gravity of a body?

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Suppose two forces act on rigid body and two forces have same magnitude but opposite direction. what conditions the body rotate?

Suppose two forces act on rigid body and two forces have same magnitude but opposite direction. what conditions the body rotate?

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Explain why spokes are fitted in the cycle wheel.

Explain why spokes are fitted in the cycle wheel.

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Why a wrench of longer arm is preferred in comparison to a wrench of short arm?

Why a wrench of longer arm is preferred in comparison to a wrench of short arm?

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If the earth is struck by meteorites, the earth will slow down slightly. Why?

If the earth is struck by meteorites, the earth will slow down slightly. Why?

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A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

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A fan with blades takes longer time to come to rest than without the blades. Why?

A fan with blades takes longer time to come to rest than without the blades. Why?

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What is the counterpart of the mass and force in rotational motion?

What is the counterpart of the mass and force in rotational motion?

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