Hi!! the answer to this question is
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hope this helps ;)
Answer:
I would use soundproofing
Explanation:
Answer:
Chemical, Physical, Chemical, Chemical, Physical!!
Explanation:
I just did it correctly.
Answer: The energy of a photon with a wavelength of 820 nm is
.
Explanation:
Given : Wavelength = 820 nm
Convert nm into meter as follows.
![1 nm = 10^{-9}\\So, 820 nm = 820 nm \times \frac{10^{-9} nm}{1 nm}\\= 820 \times 10^{-9} m](https://tex.z-dn.net/?f=1%20nm%20%3D%2010%5E%7B-9%7D%5C%5CSo%2C%20820%20nm%20%3D%20820%20nm%20%5Ctimes%20%5Cfrac%7B10%5E%7B-9%7D%20nm%7D%7B1%20nm%7D%5C%5C%3D%20820%20%5Ctimes%2010%5E%7B-9%7D%20m)
The relation between energy and wavelength is as follows.
![E = \frac{hc}{\lambda}](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7Bhc%7D%7B%5Clambda%7D)
where,
E = energy
h = Planck's constant = ![6.63 \times 10^{-34} kg m^{2}/s](https://tex.z-dn.net/?f=6.63%20%5Ctimes%2010%5E%7B-34%7D%20kg%20m%5E%7B2%7D%2Fs)
c = speed of light = ![3.0 \times 10^{8} m/s](https://tex.z-dn.net/?f=3.0%20%5Ctimes%2010%5E%7B8%7D%20m%2Fs)
= wavelength
Substitute the values into above formula as follows.
![E = \frac{hc}{\lambda}\\= \frac{6.63 \times 10^{-34} kg m^{2}/s \times 3.0 \times 10^{8} m/s}{820 \times 10^{-9} m}\\= \frac{1.989 \times 10^{-25}}{820 \times 10^{-9}}\\= 2.42 \times 10^{-19} m](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7Bhc%7D%7B%5Clambda%7D%5C%5C%3D%20%5Cfrac%7B6.63%20%5Ctimes%2010%5E%7B-34%7D%20kg%20m%5E%7B2%7D%2Fs%20%5Ctimes%203.0%20%5Ctimes%2010%5E%7B8%7D%20m%2Fs%7D%7B820%20%5Ctimes%2010%5E%7B-9%7D%20m%7D%5C%5C%3D%20%5Cfrac%7B1.989%20%5Ctimes%2010%5E%7B-25%7D%7D%7B820%20%5Ctimes%2010%5E%7B-9%7D%7D%5C%5C%3D%202.42%20%5Ctimes%2010%5E%7B-19%7D%20m)
Thus, we can conclude that energy of a photon with a wavelength of 820 nm is
.
Answer:
Disability insurance is financial protection for your most valuable asset — the ability to work and earn an income. So why is it so commonly overlooked and misunderstood?
Homeowners insurance protects where you live. Car insurance protects what you drive. Health insurance protects your well-being.
But what protects your ability to work and earn an income? After all, that's what allows you to pay for all of the above.
To protect yourself against the risk of losing your paycheck due to injury or illness, there's disability insurance. In this article, we cover everything you need to know about this important, yet often overlooked type of insurance for your income.
Disability insurance definition
Disability insurance is a type of coverage that replaces a portion of your monthly income if injury or illness prevents you from working. It provides financial security for you and any loved ones who may depend on your most valuable asset — your ability to earn a paycheck. You may also hear disability insurance referred to as disability income insurance or income protection.
Explanation: