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charle [14.2K]
3 years ago
15

Visible light is a range of _____ energy EM waves in the electromagnetic spectrum that the human eye can see. A. zero B. high C.

low D. medium
Physics
2 answers:
patriot [66]3 years ago
7 0
The answer is a or d

vfiekz [6]3 years ago
4 0

The visible light falls into the measure of low energy range in the electromagnetic spectrum.  

Answer: Option C

<u>Explanation:</u>

The visible light is one of the 7 kind of electromagnetic spectrum that we know. Of those 7 kind, the visible light falls in between of the electromagnetic spectrum according to the wavelength of the light.

The visible light consists of VIBGYOR where the red has the 1.8 eV of the energy with violet to have around 3.4 eV. Therefore the correct answer is low.

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A gas‑forming reaction produces 1.90 m 3 1.90 m3 of gas against a constant pressure of 179.0 kPa. 179.0 kPa. Calculate the work
goldfiish [28.3K]

Answer:

The work done is 3.4 × 10⁵ J.

Explanation:

Given:

Pressure of the gas produced (P) = 179 kPa

Volume of the gas produced (ΔV) = 1.90 m³

We need to find the work done in joules. For that, we don't need any conversion as the units are already in SI units which will give the result in Joules only.

Now, let us verify our results by using conversion factors and without using them.

Using conversion factors:

1 m³ = 1000 L

So, 1.90 m³ = 1.90 m³ × 1000 \frac{L}{m^3} = 1900 L

Also, 1 atm = 101.325 kPa

So, 179 kPa = 179 kPa × \frac{1\ atm}{101.325\ kPa} = 1.767 atm

Now, work done in a constant pressure process is given as:

Work = Pressure × Volume change

Work = P × ΔV

Work = 1.767 atm × 1900 L

Work = 3.36 × 10³ atm-L

Now, again using the energy conversion for work.

1 atm-L = 101.325 J

So, 3.36 × 10³ atm-L = 3.36 × 10³ atm-L × \frac{101.325\ J}{1\ atm-L} = 3.4 × 10⁵ J

Therefore, the work done is 3.4 × 10⁵ J.

Now, let us verify the above result without any conversion.

Work = P × ΔV = 179 × 1000 × 1.90 = 3.4 × 10⁵ J.

Therefore, the work done is same by both ways.

Hence the work done is 3.4 × 10⁵ J.

8 0
3 years ago
Dark clothing feels warmer than white clothing on a sunny day. Which interaction causes the dark clothing to feel warm?
yulyashka [42]

Explanation:

The darker the object, the better it emits heat, because it's a better absorber of light. On the other hand, a white object appears white because it reflects all the different wavelengths and absorbs little to no light.

8 0
3 years ago
Read 2 more answers
Which of the following best describes what’s physicist does
yarga [219]
They gather data about the natural world.
hope that helped! :)
3 0
3 years ago
What is a analogy for transition metals
Ganezh [65]

<em>A simple metallic band model is proposed for the transition metal mono antimonides, by analogy to the transition metals.</em>

6 0
3 years ago
A large heavy truck smashes into a brick wall totally crumpling the front end. what is the conclusion of this description
Oduvanchick [21]
The person driving the truck was killed
the wall was destroyed
8 0
3 years ago
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