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How much work is done. Physics problemby xswtxoj
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#1
Feb1409, 12:17 AM

P: 87

1. The problem statement, all variables and given/known data
1. A +38 uC charge is place @ 41cm from an identical +38uC. If assuming the potential identity is 0. whats the potential midway btw the 2 charges? 2. How much work is done to move a 0.40 uC charge from a point midway between the charge to a point 10 cm closer to either of the charges? 2. Relevant equations V= m/q ? F= Ke qq/r 3. The attempt at a solution Not sure where to start but.... 8.99e19(38e6)(q3)/(.041mx )^2 8.99e19(38e6)(q3)/(x )^2 


#2
Feb1409, 12:28 AM

HW Helper
P: 5,341

Simply calculate the ΔV because that times q is your work.



#3
Feb1409, 12:32 AM

P: 87

so i used V= Ke q/r?



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