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sergejj [24]
3 years ago
15

What materials are used on solar panels to allow them to produce electricity?

Physics
1 answer:
Softa [21]3 years ago
6 0
<span>Rays of sunlight hit the solar panel and are
</span><span>absorbed by semi-conducting materials such as silicon.
 Photovoltaic cells are
</span><span>usually made from silicon, an excess material that constitutes more
</span><span>than 28 percent of the Earth's crust.
These cells are created by bonding two
</span><span>wafers of silicon that are connected to metal wires
</span>The top water is silicon is thin and bottom is thicker the wafers produce electricity as absorb solar radiation
hope it helps
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The frequency of the second harmonic of a certain musical instrument is 100 Hz. What is the fundamental frequency of the instrum
ruslelena [56]
The harmonic frequency of a musical instrument is the minimum frequency at which a string that is fixed at both ends in the instrument may vibrate. The harmonic frequency is known as the first harmonic. Each subsequent harmonic has a frequency equal to:
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f = 100 / 2
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3 years ago
A balloon filled with helium has a small hole on the right side of the balloon. How would Pascal explain why the entire balloon
Morgarella [4.7K]

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2 years ago
A flywheel with radius of 0.400 mm starts from rest and accelerates with a constant angular acceleration of 0.600 rad/s2rad/s2.
charle [14.2K]

Answer: 0.00024\ m/s^2

Explanation:

Given

Radius of flywheel is r=0.4\ mm

Angular acceleration \alpha=0.6\ rad/s^2

For no change in radius, tangential acceleration is  given as

\Rightarrow a_t=a\lpha \times r

Insert the values

\Rightarrow a_t=0.6\times 0.4\times 10^{-3}\ m/s^2\\\Rightarrow a_t=2.4\times 10^{-4}\ m/s^2\ \text{or}\ 0.00024\ m/s^2

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madreJ [45]
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8 0
2 years ago
Read 2 more answers
A cello string 0.75 m long has a 220 hz fundamental frequency. find the wave speed along the vibrating string. answer in units o
maxonik [38]
For fundamental frequency of a string to occur, the length of the string has to be half the wavelength. That is,

1/2y = L, where L = length of the string, y = wavelength.

Therefore,
y = 2L = 2*0.75 =1.5 m

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4 0
3 years ago
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