Physics
A body moving in a circular path with a constant speed has a

Constant kinetic energy
Constant velocity
Constant displacement
Constant acceleration

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Physics
Superconductors are those elements

Whose resistance falls almost to zero at very low temperatures
Which turn into insulators at very low temperatures
Whose conductivity is intermediate between metals and insulators
Which conduct electricity only at super-high temperatures

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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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