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4 years ago

Why is extrinsic semiconductor electrically neutral even if it has a large number of charge carriers, holes or electrons?

Physics

1 answer:

Keith_Richards [23]4 years ago

5 0

Answer:

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Explanation:

yrteizdgbnneqqgkh ksvstoetwitutwydt.

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What is an static electricity

Ipatiy [6.2K]

Answer:

Explanation:

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4 years ago

Electroencephalography (EEG), in which electrodes placed on the scalp pick up electrical signals underneath, and magnetoencephal

Alexxx [7]

Does electrical curents flows of charges across the membrane and the depolarization continues also due to charges that reject each other and the flow continues .so there appears a magnetic field as well

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3 years ago

What is the substance through which sound travels?

Ann [662]

Answer:

Sound waves need to travel through a medium such as solids, liquids and gases. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly.

Explanation:

Hope this helped, Have a Great Day!!

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3 years ago

Suppose the average mass of each of 20,000 asteroids in the solar system is 1017 kg. Compare the total mass of these asteroids t

blondinia [14]

Answer:

The mass of the asteroids is 0.000334896182184 times the mass of the Earth.

39929.4542466 m

Explanation:

Total mass of the asteroids

$m_a20000\times 10^{17}=2\times 10^{21}\ kg$

$m_e$ = Mass of Earth = $5.972\times 10^{24}\ kg$

The ratio is

$\dfrac{m_a}{m_e}=\dfrac{2\times 10^{21}}{5.972\times 10^{24}}\\\Rightarrow \dfrac{m_a}{m_e}=0.000334896182184$

The mass of the asteroids is 0.000334896182184 times the mass of the Earth.

Volume is given by

$V=\dfrac{m}{\rho}\\\Rightarrow \dfrac{4\pi}{3\times 8} d^3=\dfrac{m}{\rho}\\\Rightarrow d^3=\dfrac{3\times 8}{4\pi}\dfrac{m}{\rho}\\\Rightarrow d=(\dfrac{3\times 8}{4\pi}\dfrac{m}{\rho})^{\dfrac{1}{3}}\\\Rightarrow d=(\dfrac{3\times 8}{4\pi}\dfrac{10^{17}}{3000})^{\dfrac{1}{3}}\\\Rightarrow d=39929.4542466\ m$

The diameter is 39929.4542466 m

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3 years ago

If a Sam goes above and beyond what is expected in her job duties, what might Sam's supervisor note on Sam's next evaluation?

leva [86]

Answer:

Exadadadwwwwwwwplanation:

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3 years ago