The properties of some rare earth elements make them essential ingredients in electronics. Rare earth elements appear together i
n the same general area of the periodic table of the elements. The graph shows two properties of several rare earth elements.
Is it accurate to say that the rare earth elements, as a group, share the same properties? Support your answer using the information in the graph.
Is it accurate to say that the rare earth elements, as a group, share the same properties? Support your answer using the information in the graph.
2 answers:
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Answer:
(a) Magnitude: 14.4 N
(b) Away from the +6 µC charge
Explanation:
As the test charge has the same sign, the force that the other charges exert on it will be a repulsive force. The magnitude of each of the forces will be:
K is the Coulomb constant equal to 9*10^9 N*m^2/C^2, q and qtest is the charge of the particles, and r is the distance between the particles.
Let's say that a force that goes toward the +6 µC charge is positive, then:
The magnitude will be:
, away from the +6 µC charge
