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Free_Kalibri [48]
3 years ago
15

What is the difference between what happens to the light waves when they reach the "golden" colored mask

Physics
2 answers:
Yuri [45]3 years ago
4 0

Answer:

Explanation:

b gvgbhkn

Natasha_Volkova [10]3 years ago
3 0

Answer:

I believe the black mask absorbs all light while the golden absorbs everything but whatever color it is that makes a golden hue.

Explanation:

This is because black is void of all colors. when something has a certain pigment, you immediately know that all colors are absorbed acept for the one you can see because it reflects off of it and the waves hit your eyes just right, making it come off as that color. (I believe)

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what is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates wa
diamong [38]

Answer:

Final energy = Uf = initial energy × d₂/d₁

Explanation:

Energy is the ability to do work.

capacitor is an electronic device that store charges

where

V is the potential difference

d is the distance of seperation between the two plates

ε₀ is the dielectric constant of the material used in seperating the two plates, e.g., paper, mica, glass etc.

A = cross sectional area

U =¹/₂CV²

C =ε₀A/d

C × d=ε₀A=constant

C₂d₂=C₁d₁

C₂=C₁d₁/d₂

charge will  'q' remains same in the capacitor, if the capacitor was disconnected from the electric potential source (v) before the separation of the plates was replaced

Energy=U =(1/2)q²/C

U₂C₂ = U₁C₁

U₂ =U₁C₁ /C₂

U₂ =U₁d₂/d₁

Final energy = Uf = initial energy × d₂/d₁

7 0
3 years ago
A heat engine (Power Cycle) with a thermal efficiency of 35 percent efficiency produces 750 kJ of work. Heat transfer to the eng
frosja888 [35]

Answer:

a) The schematic illustrating is attached

b) The heat transfer to the heat engine is 2142.86 kJ, the heat transfer from the heat engine is 1392.86 kJ

c) The heat transfer to the heat engine is 1648.35 kJ, the heat transfer from the heat engine is 898.35 kJ

Explanation:

b) The heat transfer to the engine and the heat transfer from the engine to the air is:

Q_{1} =\frac{W}{n}

Where

W = 750 kJ

n = 35% = 0.25

Replacing:

Q_{1} =\frac{750}{0.35} =2142.86kJ

Q_{2} =Q_{1} -W=2142.86-750=1392.86kJ

c) The efficiency of Carnot engine is:

n=1-\frac{300K}{550K} =0.455

The heat transfer to the heat engine is:

Q_{1c} =\frac{750}{0.455} =1648.35kJ

The heat transfer from the heat engine is:

Q_{2c} =1648.35-750=898.35kJ

4 0
3 years ago
I'll give you a BRAINLIEST if you help me with these questions and they have to be correct.
irina1246 [14]
2. 3 I think I’m not sure
7 0
3 years ago
What is a nuclear bulge?
Marizza181 [45]
The answer would be D) the building center of a spiral galaxy consisting of stars in the shape of a flattened sphere that circles a black hole 
4 0
3 years ago
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A number written in scientific notation has the form a×10k, where 1≤a<10 and k is an integer, that is, k is one of ...−3,−2,−
Evgen [1.6K]

scientific notation is given as

a \times 10^k

here we know that

1 <  a < 10 and

k = whole number

now the number will be

N = 299,790,000

here we know that

N = 2.99 \times 10^8

so we have

a = 2.99

k = 8

3 0
4 years ago
Read 2 more answers
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