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3 years ago

What electromagnetic waves are dangerous for humans?

2 answers:

8 0

<span>Our cell phones transmit in the radio/microwave part of the spectrum, and studies are being done to see if they have long term harmful effects. So while all forms of electromagnetic waves can be harmful, the ones usually though of as harmful are Gamma rays, X-rays, and Ultraviolet light.
(Too much sunlight can cause skin cancer and don't look straight at the sun)</span>

Artyom0805 [142]3 years ago

3 0

Answer:

Explanation: Except visible ranges waves, almost all the wave of EM spectrum are harmful for human health.Some waves in the electromagnetic spectrum are very harmful for humans and have very quick effect such as:- gamma rays, x-rays, ultraviolet rays etc. other wave such as radio and microwaves are also harmful for human being but they have long term effect.

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Answer:

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2 years ago

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The smallest division value of electronic balance

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Answer:

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3 years ago

The x component of vector is -27.3 m and the y component is +43.6 m. (a) What is the magnitude of ? (b) What is the angle betwee

lara [203]

Answer:51.44 units

Explanation:

Given

x component of vector is $-27.3\hat{i}$

y component of vector is $43.6\hat{j}$

so position vector is

$r=-27.3\hat{i}+43.6\hat{j}$

Magnitude of vector is

$|r|=\sqrt{27.3^2+43.6^2}$

$|r|=\sqrt{2646.25}$

|r|=51.44 units

Direction

$tan\theta =\frac{43.6}{-27.3}=-1.597$

vector is in 2nd quadrant thus

$180-\theta =57.94$

$\theta =122.06^{\circ}$

4 0

3 years ago

Convert 10095 mm to pm

ludmilkaskok [199]

Answer:

1.01 × 1013 picometres

Explanation:

multiply the length value by 1e+9

3 0

3 years ago

What effect does a tripling of the net force have upon the acceleration of the object?

dsp73

The formula of net Force is:F = mawhere m is the mass of the objecta is the acceleration of the object
thus, if we triple the net force applied to the object:
3F = maa = 3F / m
The acceleration is also tripled since the force is directly proportional to the acceleration.

4 0

4 years ago