Physics
For a body moving with uniform acceleration its final velocity equals ________

2 x average velocity + initial velocity
Average velocity + initial velocity
2 x average velocity - initial velocity
Average velocity - initial velocity

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Physics
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:

cohesion of mercury is greater than its adhesion with glass.
cohesion of water is greater than its adhesion with glass.
density of mercury is greater than that of water.
mercury is a metal.

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