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lakkis [162]
3 years ago
11

This is actually physical science but there isn’t a tag for that☹︎

Physics
1 answer:
gayaneshka [121]3 years ago
3 0
500ml = 0.5 L
4.2L = 4200ml
400mg = 0.0004kg
150kg = 150000g

I’m not sure about number 4 though
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An electron in a vacuum is first accelerated by a voltage of 81700 V and then enters a region in which there is a uniform magnet
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Answer:

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Explanation:

We have given electron is accelerated with a potential difference of 81700 volt.

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Mass of electron m=9.11\times 10^{-31}kg

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By energy conservation.

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v=169.4\times 10^6m/sec

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F=qvBsin\Theta

F=1.6\times 10^{-19}\times 169.4\times 10^6\times 0.508\times sin90^{\circ}

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