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3 years ago

10. Scientists try to develop an explanation for what

Physics

2 answers:

antoniya [11.8K]3 years ago

6 0

Answer:

it must be based on information that other scientists have also gathered

sleet_krkn [62]3 years ago

5 0

Answer:

hope its ok

Explanation:

Science is a way of learning about what is in the natural world, how the natural world works, and how the natural world got to be the way it is. It is not simply a collection of facts; rather it is a path to understanding.so it should contain a logical theory but it can also never be said as the final answer.

so A) OR D) both are correct

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Germanium to which 1024 m-3 Ga atoms have been added is an extrinsic semiconductor at room temperature, and virtually all the Ga

Svetlanka [38]

Answer:

Electrical Conductivity is 3200 $(\Omega m)^{-1}$

Solution:

As per the question:

$N_{A} = 10^{24}\ m^{- 3}\ Ga\ atoms$

Mobility of electrons, $\mu_{e} = 0.26\ m^{2}/ Vs$

Mobility of holes, $\mu_{h} = 0.020\ m^{2}/ Vs$

Charge, Q = $1.6\times 10^{- 19}\ C$

Now,

The formula for the conductivity is given by:

$\sigma = N_{A}Q\mu_{h}$

$\sigma = 10^{24}\times 1.6\times 10^{- 19}\times 0.020} = 3200(\Omega m)^{-1}$

5 0

3 years ago

In what region of the em spectrum is each?

Alisiya [41]

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4 years ago

Please help..................

worty [1.4K]

Answer:

PART A

In a solid

The attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... In the solid the particles vibrate in place. Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container.

In a liquid

Particles are quite close together and move with random motion throughout the container. Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles.

A gas

The particles move rapidly in all directions, frequently colliding with each other and the side of the container. With an increase in temperature, the particles gain kinetic energy and move faster.

PART B

The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. The more particles that hit the walls, the higher the pressure.

Explanation:

GOOD LUCK!!! :)

7 0

3 years ago

PLEASE I NEED HELP CLICK ON THIS IMAGE

3241004551 [841]

I believe you are incorrect. A weathered mountain would appear more jagged.

I do believe with a lot of exposure to weather will make the mountain appear somewhat more jagged compared to a mountain that is less weathered.

<em>If this is incorrect, please, don't refrain to tell me.</em>

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3 years ago

La velocidad de la luz en el vacío es c= 3000.000 km\s la luz del sol tarda en llegar a la tierra 8 minutos y 14 segundos

ehidna [41]

La velocidad correcta de la luz en el vacío es 300.000 km/s .

La distancia = (velocidad) x (duración de tiempo)

Duración de tiempo = 494 segundos, porque cada minuto = 60 segundos

La distancia = (300.000 km/s) x (494 s)

<em>La distancia = 148.200.000 km</em>

3 0

4 years ago