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jenyasd209 [6]
3 years ago
8

Which of these surfaces gives unpolarized reflected light?

Physics
2 answers:
barxatty [35]3 years ago
5 0

Answer:

Metal

Explanation:

Light is basically an electromagnetic wave having both electric and magnetic component. This contains electric charges. While traveling, EM wave vibrates in multiple planes. This light is unpolarized light. The process of limiting the vibrations to a single plane is called as polarization.

This can be achieved through non metallic reflection (Snow and Glass), refraction (Water), scattering, and Polaroid filters. A metallic reflection will not result in polarization.

scoray [572]3 years ago
4 0

The answer is Metal I'm 100% positive

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The eficiency of a <br> simple machine can never be 100% why?​
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Answer:

Systems always tend toward a state of decreasing order unless more energy is provided into the system to counteract this tendency.

6 0
3 years ago
A bullet is fired into the air at an angle of 45°. How far does it travel before it is 1,000 feet above the ground? (Assume that
Readme [11.4K]

Answer:

It travels 1414 feets.

Explanation:

Let's take the length the bullet travels <em>l </em>as the hypotenuse of a right triangle and the height it reaches one of its sides. Since we got the angle α at which it was fired and the height <em>h</em> it reached, we can calculate <em>l</em> using the <em>sin(α)</em> function:

sin(\alpha )=\frac{opposite side}{hypotenuse}\\sin(\alpha)=\frac{h}{l}\\l=\frac{h}{sin(\alpha)}

Replacing:

l=\frac{1000ft}{sin(\frac{\pi}{4})}

Solving and roundin to the nearest foot:

l=1414 ft

3 0
3 years ago
_____ has the potential to superimpose digital data over real photos so that GPS maps can be combined with real pictures of stor
IRISSAK [1]

<u>Augmented reality</u> has the potential to superimpose digital data over real photos so that GPS maps can be combined with real pictures of stores and streets to help people locate their position.

<u>Explanation:</u>

An engaging perception of an original globe atmosphere, where by computer-generated perceptual knowledge the transformation of real-world entities take place and also by multiple sensory modalities, involving somatosensory, visual, auditory, haptic and olfactory forms, thus known as augmented reality.

AR app uses GPS and camera from a smartphone to deploy an augmented reality-enabled GPS navigation system. As in the web, AR tool termed as Real View Navigation is accessible to all Android and iOS clients. Google is brought its first virtual reality walking directions, now recognized as Live Experience on Google Maps.

4 0
2 years ago
7. A golfer hits a golf ball a through a horizontal displacement of 80m. The time of flight for the ball was 1.8
Darya [45]

Answer:

44.4 m/s

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d = v*t

v = d/t = 80/1.8 = 44.4 m/s

6 0
2 years ago
Kyle has a mass of 54kg and is moving at 3 m/s what is his kinetic energy
Mars2501 [29]

Answer:

243J

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K.E = 1/2 x 54 x 9

K.E = 1/2 x 486

K.E = 486/2

K.E = 243J

6 0
3 years ago
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