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A uniform electric field exists in the region among two oppositely charged parallel plates 1.59 cm apart. A proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval 1.57 × 10−6 s.
1. Discover the magnitude of the electric field.
2. Discover the speed of the proton at the moment it strikes the negatively charged plate.
3. Compute the surface charge density on each plate.
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