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Yakvenalex [24]
3 years ago
5

What human disease can result from exposure to ultraviolet radiation from the sun?

Physics
2 answers:
aev [14]3 years ago
8 0
Melanoma skin cancer
Mila [183]3 years ago
5 0

Explanation:

The wavelength of the ultraviolet rays lies in between 10 nm to 400 nm. UV rays can cause the following problems on human :

(1) It can increase the risk of skin cancer.

(2) It can cause cataract.

(3) It can cause painful sunburn.

(4) It can cause wrinkling and age on the skin.

So, it is advisable to use sunscreen before leaving home and use goggles. This is the cure for ultraviolet radiation.

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In my opinion I would say all of the above; because people's job depends on where they live or how their environment is. The way they travel is also affected because we can't travel by car through water and can't use a boat in land. Free time as well because people like to travel and or just stay at home depending on the weather which is part of earths features.
7 0
3 years ago
You need eye drops for your dry eyes. You brought only a few dollars with you to the store. Which is the best method of choosing
Mnenie [13.5K]

Answer:

Compare brands first, but purchase the one that has lots of commercial advertisements, Compare ingredients and purchase the brand that is safe to use with soft contact lenses, Compare prices and purchase the most inexpensive brand.

Explanation:

4 0
2 years ago
What is the magnitude of the velocity when the elastic potential energy is equal to the kinetic energy? (Assume that U=0 at equi
zhannawk [14.2K]

Answer:

Explanation:

General Equation of SHM is given by

x=A\cos \omega t

v=-A\omega \sin \omega t

where x=position of particle

A=maximum Amplitude

\omega =angular frequency

t=time

At any time Total Energy is the sum of kinetic Energy and Elastic potential Energy i.e. \frac{1}{2}kA^2

where k=spring constant

Potential Energy is given by U=\frac{1}{2}kx^2

also it is given that Potential Energy(U) is equal to Kinetic Energy(K)

Total Energy=K+U

Total=2U=2\times \frac{1}{2}kx^2

\frac{1}{2}kA^2=2\times \frac{1}{2}kx^2

x=\pm \frac{A}{\sqrt{2}}

at x=\frac{A}{\sqrt{2}}

velocity is v=\frac{A\omega}{\sqrt{2}}

6 0
3 years ago
The ice skaters partner liftes her up a distance of 1 m work done or not work done
SOVA2 [1]

Answer:

Work done.

Explanation:

The skater who lifts has to overcome the partner's weight. When lifted up by 1 meter, her potential energy increases by (mass)x(gravitational acceleration)x(1meter), which is the amount of work done.

(This all assumes lifting vertically and no other forces being part of the picture)

5 0
3 years ago
A ball is dropped from the top of a building. it initially moves at 4.0 m/s. after 0.5 seconds, it moves at 3.8 m/s. what force
Dima020 [189]

Air resistance (meeting space requirements)

7 0
2 years ago
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