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Anna35 [415]
4 years ago
9

Why do chemists synthesize polymers in the lab

Physics
1 answer:
gregori [183]4 years ago
8 0

Answer:

Polymers are widely used advanced materials, which are found almost in every material used in our daily life. ... The rapid increase in demand for the manufactured products introduce the new materials. These new materials are polymers, and their impact on the present way of life is almost incalculable.Explanation:

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The speed of light is 3.00 × 108 m/s in the vacuum of space. In a medium with what index of refraction would light travel slowes
Romashka [77]

Index of refraction can be calculated using the following formula:

n=\frac{c}{v}

where c=3 \times 10^8 \frac{m}{s} in a vacuum and "n" is the index of refraction.  So we must calculate our velocity by manipulating the index of refraction formula and isolate v and so:

v=\frac{c}{n}

We could go one by one and calculate the velocity or use logic.  If you divide by a larger number the output will be a smaller number.  Therefore, the answer would be n=1.62 is the slowest.

v=\frac{3 \times 10^8 \frac{m}{s}}{1.62}= 1.85185 \times 10^8 \frac{m}{s}

By that logic when n=1 light would travel the fastest of these four scenarios.  The key thing to understand about these problems is that the speed of light slows down as it goes through a medium, in a vacuum it's 3 x 10^ 8 m/s but as it goes through say air or water light slows down.

3 0
4 years ago
Which chemicals are major contributors to ozone layer destruction? Select two answer choices.
Nastasia [14]

Answer:

what are the answers to select? or do you just say them

Explanation:

???

3 0
3 years ago
Read 2 more answers
A freely suspended bar magnet always shows north and south direction why​
Masja [62]
<h2>Answer:</h2>

The earth behaves as a magnetic dipole. Therefore a freely suspended magnet always points towards in the north-south direction because the north pole of the suspended magnet attracts the south pole of the earth's magnet which is the geographical north pole of the earth.

<em>hope</em><em> </em><em>this</em><em> </em><em>help</em><em>!</em>

8 0
3 years ago
With what type of electromagnetic radiation would you observe:
Viefleur [7K]

Answer:

Green part of the visible spectrum.

X ray part of the electromagnetic spectrum.

Infrared part of the electromagnetic spectrum.

Explanation:

Wien's displacement law

\lambda_{max}=\frac{b}{T}

Where, b = Wien's displacement constant = 2.898×10⁻³ mK

T = Temperature in kelvin

\lambda_{max}=\frac{2.898\times 10^{-3}}{5800}\\\Rightarrow\lambda_{max}=0.499\times 10^{-6}=0.5\mu m=500\ nm

So, the wavelength would be of around the green part of the visible spectrum.

\lambda_{max}=\frac{2.898\times 10^{-3}}{1\times 10^6}\\\Rightarrow\lambda_{max}=2.898\times 10^{-9}=2.898\ nm

So, the wavelength would be of around the X ray part of the electromagnetic spectrum.

Human body temperature = 37°C = 37+273.15 = 310.15 K

\lambda_{max}=\frac{2.898\times 10^{-3}}{37+273.15}\\\Rightarrow\lambda_{max}=\frac{2.898\times 10^{-3}}{310.15}\\\Rightarrow\lambda_{max}=9.34\times 10^{-6}=934\ nm

So, the wavelength would be of around the Infrared part of the electromagnetic spectrum.

5 0
3 years ago
Clarissa has a credit card with a limit of $1,000 and pays her balance in full each month. If Clarissa needs a short-term loan,
Aloiza [94]

Answer:

B.she cannot use it because the credit card is not collareral

Explanation:

sorry if am wrong

5 0
3 years ago
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