! i have a physics exam tomorrow and i just can't wrap my head around this one!
three...
![subject](/tpl/images/cats/fizika.png)
! i have a physics exam tomorrow and i just can't wrap my head around this one!
three charged particles lie on the same straight line. their charges are equal:
qa=qb=qc=0.5 microcoulombs
charged particle b is in between particles a and c, in the middle. what is the intensity of the electrostatic force acting on particle a? the distance between a and c is 20 meters. particles b and c are fixed in place.
formula for the electrostatic force:
![f = k \times \frac{q1 \times q2}{r {}^{2} }](/tex.php?f= f = k \times \frac{q1 \times q2}{r {}^{2} } )
the answer is 28 micronewtons, but i don't understand how they got that solution?
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Answers: 1
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