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love history [14]
2 years ago
6

A. B. C. D. Please help

Physics
2 answers:
MA_775_DIABLO [31]2 years ago
8 0

Answer:

The answer is A, B, C and D

Explanation:

(is that how it works?)

marissa [1.9K]2 years ago
4 0

Answer:

B

Explanation:

From the question above, you can see in the picture, the first,second ,third models have respectively 4 e in second circle (Carbon), 5 e in second circle(Nitrogen) , 6e in second circle(Oxygen) . So, to maintain the serial, the next model must have 7 e in second circle of the atom which is option B : Fluorine

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If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a resul
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Answer:

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2 years ago
Read 2 more answers
When it comes to how ray lines are drawn, what makes the convex lens and concave mirror similar to each other?
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The magnitude of Earth’s magnetic field is about 0.5 gauss near Earth’s surface. What’s the maximum possible magnetic force on a
vampirchik [111]

Answer:

F = 1.5 \times 10^{-16} N

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Explanation:

Kinetic Energy of the electron is given as

KE = 1 keV

KE = 1 \times 10^3 (1.6 \times 10^{-19}) J

KE = 1.6 \times 10^{-16} J

now the speed of electron is given as

KE = \frac{1}{2}mv^2

now we have

v = \sqrt{\frac{2 KE}{m}}

v = 1.87 \times 10^7 m/s

now the maximum force due to magnetic field is given as

F = qvB

F = (1.6\times 10^{-19})(1.87 \times 10^7)(0.5 \times 10^{-4})

F = 1.5 \times 10^{-16} N

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\frac{F}{F_g} = \frac{1.5 \times 10^{-16}}{9.1 \times 10^{-31} (9.8)}

\frac{F}{F_g} = 1.68 \times 10^{13}

so this force is 1.68 \times 10^{13} times more than the gravitational force

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