Physics
The spoon dropped by an astronaut in a satellite will

Continue to follow the motion of the satellite
Fall to the floor
Remain stationary
Move tangentially away

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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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