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

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1 min read
The earth moving round the sun in an orbit is acted upon by a force; hence the work must be done on the earth by this force
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The earth moving round the sun in an orbit is acted upon by a force; hence the work must be done on the earth by this force

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Distinguish between conservative and non-conservative force
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Distinguish between conservative and non-conservative force

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Why do leaves fall when a tree is shaken?
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Why do leaves fall when a tree is shaken?

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If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?
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If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?

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If a moving bullet striking a block of wood on a frictionless table embeds inside it what happens to the KE of the bullet?
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If a moving bullet striking a block of wood on a frictionless table embeds inside it what happens to the KE of the bullet?

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Explain why a cricketer moves his hands backwards while catching ball?
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Explain why a cricketer moves his hands backwards while catching ball?

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In terms of vapour pressure, what do you mean by a boiling point of a liquid?
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In terms of vapour pressure, what do you mean by a boiling point of a liquid?

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

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

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What is a joint-stock company? Please explain this with an example.
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What is a joint-stock company? Please explain this with an example.

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Why do we slip on a rainy day?
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Why do we slip on a rainy day?

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If action and reaction are always equal and opposite, why don’t they always cancel each other?
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If action and reaction are always equal and opposite, why don’t they always cancel each other?

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Why is it difficult to run fast on sand?
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Why is it difficult to run fast on sand?

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what are the Public enterprises of Nepal?
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what are the Public enterprises of Nepal?

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