2 years ago

Semi-conductors are materials that

1 answer:

6 0

Good morning, Jesusperez7!

Semi-conductors are materials that have insulator and conductor properties.

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An ant travels 2.78 cm (West) and then turns and travels 6.25 cm (South 40 degrees East). What is the ant's total displacement?

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$From\ cosine\ theorem:\\\\
c^2=a^2+b^2-2abcos(\angle between\ a\ and\ b)\\\\
a=2,78\\b=6,25\\
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c^2=2,78^2+6,25^2-2*2,78*6,25cos(140^{\circ})\\\\
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