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sergij07 [2.7K]
3 years ago
15

Blank is a force that attracts all matter to each other

Engineering
1 answer:
madreJ [45]3 years ago
3 0

Answer:

Gravity

Explanation:

It attracts bodies to each other

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4 years ago
The electron concentration in silicon at T = 300 K is given by
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Answer:

E=1.44*10^-7-2.6exp(\frac{-x}{18} )v/m

Explanation:

From the question we are told that:

Temperature of silicon T=300k

Electron concentration n(x)=10^{16}\exp (\frac{-x}{18})

                                        \frac{dn}{dx}=(10^{16} *(\frac{-1}{16})\exp\frac{-x}{16})

Electron diffusion coefficient is Dn = 25cm^2/s \approx 2.5*10^{-3}

Electron mobility is \mu n = 960 cm^2/V-s \approx0.096m/V

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