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vagabundo [1.1K]
3 years ago
6

Why do waves with frequencies higher than visible light hurt while those with lower frequencies do not affect us?

Physics
2 answers:
STALIN [3.7K]3 years ago
7 0
Lower frequency waves have less strength to penetrate. How bad a wave is all depends on how well it penetrates our bodies. Visible light doesn't penetrate ur skin, but UV rays (higher than visible) can go through our skin, making it <span>bad" for us. High frequency waves have more energy and move faster</span>
AnnZ [28]3 years ago
4 0

Answer:

Explanation:

Waves with higher frequency have high penetration power. Energy of a wave id directly proportional to the frequency of the wave so penetration power is high. Visible rays suits to the human body and do not harm. Humans can see visible light and can easily work in visible range. But in the higher frequency such as UV waves and radio waves penetrate human body and affect it in negative way.

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Poate cineva sa imi rezolve fisa Asta pana Maine?
Firlakuza [10]

Answer:

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5 0
3 years ago
Given (kg/s) (m/s) , what is the resulting unit?
postnew [5]

I think you mean for those fractions to be multiplied.
In that case, you get

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7 0
3 years ago
dayshawn is traveling at 12 m/s away from the school. dayshaun's mom is looking for him because he is late coming home so she le
vivado [14]

Speed of Dayshawn travelling towards his home is 12 m/s

Speed of her mom towards his school is 5 m/s

They both starts at same time so whenever they will meet on their path the sum of the distance covered by Dayshawn and distance covered by his mom must be equal to the total distance of school and home

Now let say they both meet after "t" time when they starts motion

so we can write the total distance between school and home as

d = v_1*t + v_2*t

here d = 6492 m

v_1 = 12 m/s = speed of dayshawn

v_2 = 5 m/s = speed of his mom

now by solving the above equation

6492 = 12t + 5 t

t = \frac{6492}{17}

t = 381.9 s

so they will meet after 381.9 s from start which will be 3.36 minutes from there start

Also at this time the distance covered by her mom will be

d_2 = v_2*t

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so they will meet at distance 1909.4 m from their home

4 0
4 years ago
Someone please help??
stira [4]
The efficancy is .375
5 0
3 years ago
A step-up transformer has 50 turns on its primary coil and 2000 turns on its secondary
ryzh [129]

Answer:

Vs= 6000 v

Ip=9.6 A

Explanation:

Ns/Np = Vs/Vp

2000/50 = Vs/150

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Vs= 6000 v

Vs/Vp=Ip/Is

6000/150=Ip /0.24

Ip=9.6 A

7 0
3 years ago
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