Molecules, The movemnet of molecules
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Change in market price is m<span>ovement along the demand curve. </span>
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This will really help you learn a lot.
B. The velocity of the second flight is negative compared to the speed.
The solution you should use is Hooke's law: F=-kx
It should have the same signs because they repel due to the stretch of the spring.
a. Since there is a constant energy within the spring, then Hooke's law will determine the possible algebraic signs. The solution should be
<span>F = kx
270 N/m x 0.38 m = 102.6 N
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b. Then use Coulomb's law; F=kq1q2/r^2 to find the charges produced in the force.
