Physics
The direction of heat flow between two objects depends on

Whether they are in solid, liquid or gaseous state
Their heat contents
Their temperatures
Their masses

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Physics
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)

Weighing will depend on their masses
The gold piece will weigh more
The silver piece will weigh more
Both silver and gold pieces weigh equal

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