A very small object with mass 8 10109 kg and positive charge6 20109 C ...

A very small object with mass 8.10Ã—10âˆ’9 kg and positive charge 6.20Ã—10âˆ’9 C is projected directly...

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Physics

A very small object with mass 8.10Ã—10âˆ’9 kg and positive charge6.20Ã—10âˆ’9 C is projected directly toward a very large insulatingsheet of positive charge that has uniform surface charge density5.90Ã—10âˆ’8C/m2. The object is initially 0.590 m from the sheet.
What initial speed must the object have in order for its closestdistance of approach to the sheet to be 0.330 m ?
An electron is released from rest at a distance of 0.530 m froma large insulating sheet of charge that has uniform surface chargedensity 3.30Ã—10^âˆ’12C/m2 .
What is the speed of the electron when it is2.00Ã—10^âˆ’2 m from the sheet?

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4.3 Ratings (739 Votes)

The field from an effectively infinite sheet of charge is E 2 The force on the particle is FqE acting away from the sheet F qE q2 If v is the initial velocity the initial See Answer

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