A plastic comb is observed to increase its mass by 1.8 x10-18 kg when electrons are transferred to it by conduction. Calculate the total charge in the comb?
A plastic comb is observed to increase its mass by 1.8 x10-18 kg when electrons are transferred to it by conduction. Calculate the total charge in the comb?
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Please answer the last three items
Transcribed Image Text:Problem
1. Two small plastic spheres are given positive electrical charges.
When they are 15.0
epulsive force between them
p
has a magnitude 0.20 N. What would be the repulsive force if
the
stance between them is doubled?
2. A plastic comb is observed to increase its mass by 1.8 x10-¹8 kg
when electrons are transferred to it by conduction. Calculate the
total charge in the comb?
3. A charge of -5 µC exerts a repulsive force of magnitude 1 N on
an unknown charge 0.30 m away. What is the magnitude of the
unknown charge?
4. Two charges of 1 µC each are separated 10 cm apart. What is
the potential energy between them?
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