2 years ago

Which chemical reaction is most likely the slowest?

Physics

1 answer:

NemiM [27]2 years ago

8 0

B. takes the longest!

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The concept required to solve this problem is related to the wavelength.

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The waves are in phase, then the first distance is

$\Delta x_1 = 20cm$

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stiks02 [169]

Answer:

$F=1.13\,*\,10^{15}$ (answer a)

Explanation:

Recall the formula for the Coulomb force:

$F=k\frac{q_1*q_2}{d^2}$

which in our case gives:

$F=k\frac{q_1*q_2}{d^2} \\F=9*10^9\,\frac{63*45}{0.15^2} \\F\approx 1134000\,*\,10^9\\F\approx 1.13\,*\,10^{15}$

which agrees with answer a)

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2 years ago