Physics
Kinetic energy depends on

The pressure of the moving body
The mass of the moving body
Both mass and velocity of the moving body
The velocity or speed of the moving body.

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Physics
Superconductors are those elements

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

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