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2 years ago

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An ocean liner leaves New York City and travels 18.0o north of east for 155 km. How far east and how far north has it gone? In o

ther words, what are the magnitudes of the components of the ship’s displacement vector in the north and the east direction, respectively?

1 answer:

Monica [59]2 years ago

6 0

I’m sorry if i took up a lot of space, hope this is a valid approximate answer

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Find the net charge of a system consisting of 206 electrons and 161 protons. Express your answer using two significant figures.

kondaur [170]

Answer:

-72\times 10^{-19}C[/tex]

Explanation:

Both electron and proton have the same amount of charge but signs are opposite , electron contains negative charge and proton contain positive charge

Charge on 1 electron = $-1.6\times 10^{-19}C$

So charge on 206 electron $=-206\times 1.6\times 10^{-19}C$

Charge on 1 proton = $-1.6\times 10^{-19}C$

So charge on 161 electron $=-106\times 1.6\times 10^{-19}C$

So charge of the system = $(-206+161)\times 1.6\times 10^{-19}C$

$=-72\times 10^{-19}C$

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