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A particle with a mass of 3 g and a charge of +5 μC is released...

A particle with a mass of 3 g and a charge of +5 μC is released from rest at a distance of 27 cm from another particle with a charge of +27 μC, which is held fixed. How fast is the moving particle traveling when it is 134 cm away from the fixed particle?

Answer should be to two decimal place and in m/s.

2. parallel-plate air-gap capacitor is constructed from two square plates of side length 29 cm. The separation between the plates is 89.0 cm. The capacitor is attached to a battery of voltage 77V. After the capacitor is fully charged, the battery is disconnected and the separation of the plates is doubled. what is the voltage across the capacitor?  

Answer should be in two significant figures.

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