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WARRIOR [948]
2 years ago
8

How much energy does it take to move a particle with a charge of +2 nC, from an initial position infinitely far from a second pa

rticle with a charge of +3 mC, to a final position 0.20 m from the second particle?
Physics
1 answer:
vova2212 [387]2 years ago
7 0

To solve this problem we will apply the concept related to the electric potential energy, defined from the laws of Coulomb for which it is necessary to,

U = \frac{kq_1q_2}{r}

Here,

k = Coulomb's constant

q_{1,2}= Charge of each object

r = Distance,

Our values are given as,

q_1 = 2nC = 2*10^{-9}

q_2 =3mC =3*10^{-3} C

r = 0.2m

Finally replacing we have that,

U = \frac{kq_1q_2}{r}

U = \frac{(9*10^9)(2*10^{-9})(3*10^{-3})}{0.2}

U = 0.27J

Therefore the energy necessary to move the particle is 0.27J

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6 0
3 years ago
Why will a delivery truck filled with birds sitting on its floor be heavier than a truck with the same birds flying around insid
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