Physics
If an object is thrown upwards, what will be its velocity, when it reaches its maximum height?

14.7 m/s
20 m/s
4.9 m/s
0 m/s

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Physics
In a bipolar junction transistor

The emitter has the least concentration of impurity
The collector has the least concentration of impurity
All the three regions (the emitter, the base and the collector) have equal concentrations of impurity
The base has the least concentration of impurity

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