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Pleaseeee help me..
What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm? (µC = 1.0 × 10–6 C)
 one year ago
 one year ago
Pleaseeee help me.. What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm? (µC = 1.0 × 10–6 C)
 one year ago
 one year ago

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electrokidBest ResponseYou've already chosen the best response.3
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 one year ago

electrokidBest ResponseYou've already chosen the best response.3
Coulomb's Law: \[F=K{q_1q_2\over d^2}\] \[K = const.\\ q_1 = 2\times10^{6}C\\ q_2= 2\times10^{6}C\\ d=5{\rm cm}\times {1{\rm m}\over 100{\rm cm}}=0.05{\rm m} \]
 one year ago

electrokidBest ResponseYou've already chosen the best response.3
the important thing is to have all the units in SI system
 one year ago

Moneeka96Best ResponseYou've already chosen the best response.0
So i had to put cm into m like i believe you did above?
 one year ago

Moneeka96Best ResponseYou've already chosen the best response.0
now from here where do I go?
 one year ago

Moneeka96Best ResponseYou've already chosen the best response.0
wouldnt q2 be negative?
 one year ago

electrokidBest ResponseYou've already chosen the best response.3
we plug em in the equation for the force. \[ F=8.99\times10^{9}\times \frac{2\times10^{6}\times2\times10^{6}}{(0.05)^2} \]
 one year ago

electrokidBest ResponseYou've already chosen the best response.3
the negative sign can be neglected since we are only looking for the magnitude (i.e., the amount) of force. since the two charges are oppositely charged, the above force will be a force of attraction. this is the information we get from the charges
 one year ago

Moneeka96Best ResponseYou've already chosen the best response.0
Okay cool so then Id just plug the above into my calculator and thats the answer. right?
 one year ago
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