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Juliette [100K]
3 years ago
10

Polarized sunglasses work by A. blocking light waves that vibrate in one plane. B. gradually refracting light as it passes throu

gh the lenses. C. bending light as it passes from air into the lenses. D. reflecting most of the light that strikes the sunglasses.
Physics
2 answers:
worty [1.4K]3 years ago
6 0
None of the choices is correct, but 'A' is kind of on the right track. A polarizing filter PASSES only the light that vibrates in one plane or close to it, and reflects or absorbs all the light that doesn't.
Furkat [3]3 years ago
4 0

Answer: Polarized sunglasses work by A. blocking light waves that vibrate in one plane.

Explanation:  

The photons from Sun vibrate in all directions. When sunlight strikes polarized sunglasses, the orientation of the polarized filter is such that it blocks the radiations in a particular direction and allowing in other thereby reducing the amount of reflected light in that direction. This reduces the visibility and causes glare.

Thus, correct option is Polarized sunglasses work by A. blocking light waves that vibrate in one plane.

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we measure a voltage difference of 5.0 V between two points on the conducting paper between two parallel conducting electrodes.
Alex17521 [72]

Answer:

E=1824.81 V/m

Explanation:

Given that

Voltage difference = 5 V

Distance ,D= 3 mm

 θ = 24°

As we know that electric filed given as

E=\dfrac{V}{d}

Given that D is 24° with respect to the perpendicular to the electrodes.So we have to take cos component of D.

d= D cosθ

d= 3 cos24°

d = 2.74 mm

So

E=\dfrac{V}{d}

E=\dfrac{5}{2.74\times 10^{-3}}

E=1824.81 V/m

8 0
3 years ago
The angle of reflection is the angle between the normal line and the___?
Aleks [24]

Answer:

Reflected line

Explanation:

The angle between the reflected ray and the normal ray is called angle of reflection.

4 0
3 years ago
Source localization in ocean acoustics is posed as a machine learning problem in which data-driven methods learn source ranges d
Temka [501]

Source localization in ocean acoustics is posed as a machine learning problem in which data-driven methods learn source ranges directly from observed acoustic data: True.

<h3>What is machine learning?</h3>

Machine learning (ML) is also known as artificial intelligence (AI) and it can be defined as a subfield in computer science which typically focuses on the use of computer algorithms, data-driven techniques (methods) and technologies to develop a smart computer-controlled robot that has the ability to automatically perform and manage tasks that are exclusively meant for humans or solved by using human intelligence.

In Machine learning (ML), data-driven techniques (methods) are used to learn source ranges directly from observed acoustic data in a bid to proffer solutions to source localization in ocean acoustics.

In conclusion, a normalized sample covariance matrix (SCM) is constructed and used as the input, especially after pre-processing the pressure that's received by a vertical linear array in Machine learning (ML).

Read more on machine learning here: brainly.com/question/25523571

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6 0
2 years ago
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls
babunello [35]

Answer:

They are 7.4m apart.

Explanation:

Here we have a parabolic motion problem. we need the time taken to land so:

Y=Yo+Vo*t+\frac{1}{2}*a*t^2

considerating only the movement on Y axis:

0=4.6-(9.81)*t^2\\t=0.68s

Because we have a contant velocity motion on X axis:

xs=vs*t\\xs=17m/s*(0.68s)\\xs=11.6m

and

xg=vg*t\\xg=28m/s*(0.68s)\\xg=19m

the distance between them is given by:

d=|xg-xs|\\d=7.4m

7 0
3 years ago
What is radioactive dating? How is it used to determine age of something?
Liono4ka [1.6K]

Answer:

Technique of comparing abundance ratio between radioactive isotopes to a reference isotope to determine the age of a material called radioactive dating. It determines the age by having a more abundance of isotopes in the cellular being.

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2 years ago
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