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The ion gun of a mass spectrometer uses the electric field between charged metal plates to...

The ion gun of a mass spectrometer uses the electric field between charged metal plates to accelerate H+ ions (charge +e, mass 1.67 × 10−27 kg) from rest at the first plate to a velocity of 1.00 × 106 m s−1 at the second plate. If the higher potential plate is at +400 V find the potential of the other plate?

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Answer #1

Here we use energy conservation principle,

orcovservahion, 0 vi.-O, 노 1.0XLD6 m/s / ano oe get, Av-5218.75 v Mg。E 4818 75) v

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