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3 years ago

Briefly explain the difference between being self-centered and

Physics

2 answers:

tensa zangetsu [6.8K]3 years ago

6 0

Answer:

Explanation:

Self centered means you think about yourself and can sometimes mean that you're arrogant. Self aware means you are aware of certain things you do. Self centered has a negative connotation while self aware has a positive one.

dangina [55]3 years ago

4 0

Answer:

I prefer self aware

Explanation:

Self aware is just having the knowledge of one's self but self centered is like making it all about yourself

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Light striking a mirror at a 50° angle will be reflected at an angle _____.

Stells [14]

Equal to 50

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3 years ago

Read 2 more answers

Find the electron and hole mobilities, and the resistivity of intrinsic silicon at 300K. Is intrinsic silicon a semiconductor

tino4ka555 [31]

Answer:

Resistivity = 231.481 K Ohm

Yes, Intrinsic Silicon is the semiconductor.

Explanation:

Solution:

At 300K:

Let suppose mobility of electron in intrinsic semiconductor = $M_{e}$

Mobility of electron in intrinsic semiconductor is:

$M_{e}$ = 1300 $cm^{2}$ /volt.sec

Let suppose mobility of hole in intrinsic semiconductor = $M_{h}$

$M_{h}$ = 500 $cm^{2}$ /volt.sec

We know that, intrinsic silicon semiconductor has equal number of holes and electrons. So,

At 300 K

Intrinsic Carrier Concentration = 1.5 x $10^{10}$ / $cm^{3}$ = C

And,

Conductivity of intrinsic Silicon is:

σ = C x ( $M_{h}$ + $M_{e}$ ) e

e = 1.6 x $10^{-19}$ C

So, plugging in the values, we get:

σ = C x ( $M_{h}$ + $M_{e}$ ) e

σ = 1.5 x $10^{10}$ x (500 + 1300) x 1.6 x $10^{-19}$

σ = 4.32 x $10^{-6}$

So, now we can find the resistivity.

Resistivity = 1/σ

Resistivity = 1/ 4.32 x $10^{-6}$

Resistivity = 231.481 K Ohm

Yes, Intrinsic Silicon is the semiconductor.

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2 years ago

Describe a procedure that would increase the potential energy of two magnets if like poles are used. Explain why the energy of t

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Answer:

If you apply a force to separate 2 opposite poles, the potential energy of the system increases.

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2 years ago

3. The picture below is an example of a _______ _________<br> (Answer is 2 words)

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3 years ago

A rock is thrown straight down, not dropped, from the roof of a building that is 61 m above the ground. If it takes 3.1 s to rea

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Hiii !!!
I am sending the soluction !!!

If you have any question, let me now =)

Jorge:)

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3 years ago