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OLga [1]
3 years ago
15

Why is silicon needed in solar panels?

Physics
1 answer:
kodGreya [7K]3 years ago
4 0
Hi, silicon is essential in solar panels because, silicon is a semiconductor material (meaning a solid substance that has a conductivity of an insulator and is an essential component of most electric circuits ) now, when dipped with impurities such as gallium and arsenic it has the ability to capture the suns energy and convert to electricity. hope this is helpful if it is than put a thank you plz.
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Only question no.2 pls it's very urgent.<br><br>​
artcher [175]

Scurvy and rickets are micronutrient deficiency diseases due to a lack of certain vitamins or minerals in the diet. Scurvy is caused by vitamin C deficiency and rickets by vitamin D.

<h3>What are proteins and carbohydrates?</h3>

  • Proteins and carbohydrates are the macronutrient in the body and are sources of energy. Proteins are made of amino acids linked together by the peptide bond and carbohydrates are made of carbon, oxygen, and hydrogen.

  • Breathing is a biological process that involves exhalation and inhalation, while respiration is a chemical process that occurs in body cells and tissues.

  • The cerebrum and cerebellum are the parts of the brain involved with different functions. The cerebrum of the forebrain is involved with mental, motor, and sensory functions, while the cerebellum is involved with posture, balance, and coordination.

  • The infectious disease gets transmitted to another person by viruses, bacteria, fungi, etc., and non-infectious are non-communicable disease that includes age, deficiency, etc.

Learn more about proteins and carbohydrates, here:

brainly.com/question/4932822

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6 0
2 years ago
A quantum system has three states, with energies 0, 1.6 × 10-21, and 1.6 × 10-21, in Joules. It is coupled to an environment wit
xenn [34]

To develop the problem it is necessary to apply two concepts, the first is related to the calculation of average data and the second is the Boltzmann distribution.

Boltzmann distribution is a probability distribution or probability measure that gives the probability that a system will be in a certain state as a function of that state's energy and the temperature of the system. It is given by

z = \sum\limit_i e^{-\frac{\epsilon_i}{K_0T}}

Where,

\epsilon_i = energy of that state

k = Boltzmann's constant

T = Temperature

With our values we have that

T= 250K

k = 1.381*10^{23} m^2 kg s^{-2} K^{-1}

\epsilon_1=0J

\epsilon_2=1.6*10^{-21}J

\epsilon_3=1.6*10^{-21}J

To make the calculations easier we can assume that the temperature and Boltzmann constant can be summarized as

\beta = \frac{1}{kT}

\beta = \frac{1}{(1.381*10^{23} m^2)(250)}

\beta = 2.9*10^{20}J

Therefore the average energy would be,

\bar{\epsilon} =\frac{\sum \epsilon_i e^{-\beta \epsilon_i}}{\sum e^{-\beta \epsilon_i}}

Replacing with our values we have

\bar{\epsilon} = \frac{0e^{-0}+1.6*10^{-21}*e^{-\Beta(1.6*10^{-21})}+1.6*10^{-2-1}*e^{-(2.9*10^{20})(1.6*10^{-21})}}{1+2e^{-2.9*10^{20}*1.6*10^{-21}}}

\bar{\epsilon} = 0.9*10^{-22}J

Therefore the average internal energy is \bar{\epsilon} = 0.9*10^{-22}J

3 0
3 years ago
Is this right or they wrong definitions which ones are the right ones someone !!!!!
Alex73 [517]

Answer:

They are right.

Explanation:

4 0
3 years ago
Read 2 more answers
The resistivity of gold is 2.44 x 10-8 ohms.m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries
harkovskaia [24]

Answer:

E=0.036 V/m

Explanation:

Given that

Resistivity ,ρ=2.44 x 10⁻⁸ ohms.m

d= 0.9 mm

L= 14 cm

I = 940 m A = 0.94 A

We know that electric field E

E= V/L

V= I R

R=ρL/A

So we can say that

E= ρI/A

Now by putting the values

E=\dfrac{ 2.44\times 10^{-8}\times 0.94}{\dfrac{\pi}{4}(0.9\times 10^{-3})^2}

E=0.036 V/m

6 0
3 years ago
3.) If Lebron James has a vertical leap of +1.35 m. then what is his takeoff speed7 For this
Scilla [17]
D, I hoped that helped you
7 0
3 years ago
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