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Fed [463]
3 years ago
11

You are asked to design a retroreflector using two mirrors that will reflect a laser beam by 180 degrees independent of the inci

dent direction of the beam. What should be the angle between the two mirrors?
Physics
1 answer:
prisoha [69]3 years ago
3 0

Answer:

Consider the diagram. We are effectively being asked to prove that $\alpha=i_1$, for any value of $i_1$. Now, from trigonometry,

Explanation:

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The term solstice translates as "Sun stop." Explain why this translation makes sense from an astronomical point of view. It make
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It makes sense because on that the day  the sun stops moving northward and starts moving southward

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3 years ago
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What is diffraction?
WITCHER [35]

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D) the bending of a wave as it moves around an obstacle or passes through a narrow opening

Explanation:

Even though light travels in straight line, it will bend around objects if their size is comparative to its wavelength. This phenomenon is called diffraction.

Light will also bend if the light travels from one medium to another medium at an angle, but that is called refraction.

Diffraction occurs in one medium. Refraction occurs when light travels from one medium to another.

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3 years ago
Hai ô tô khởi hành cùng lúc từ A,B cách nhau 20 km chuyển động theo hướng từ A đến B vs vận tốc lần lượt là 60km/h và 40km/h
sdas [7]

Answer:

áp dụng công thức v = s/t

s là dộ dài qduong

v là vận tốc

t là thời gian

xuyên suốt 2 câu hỏi đều dùng công thức này

Explanation:

6 0
2 years ago
2. Use physics terms to explain the benefits of crumple zones in modern cars.
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They decrease trauma by allowing for a more gradual change in velocity

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6 0
3 years ago
Which of the following statements describe the steps you need to take to delete a file?
Doss [256]
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It isn't required to click on the X at the top right of the screen or to open the file you want to delete as these steps aren't relevant to the deletion process.

Hence, the statements which describe the steps you need to take in order to delete a file are as follows:

- Confirm the deletion.
- Select Delete from the File menu.
- Select the file you want to delete.
6 0
3 years ago
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