Physics
As we go from Equator to North pole the value of ''g', the acceleration due to gravity

Remains the same
Increases
None of these
Decreases

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Physics
A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that

The metal ball suffers greater change in momentum
The initial momentum of the rubber ball is greater than that of the metal ball
Both suffer the same change in momentum
The rubber ball suffers greater change in momentum

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Physics
The velocity of sound in air

Decreases with decrease of temperature
Decreases with increase of temperature
Does not depend on temperature
Increases with decrease of temperature

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