Friction occurs when the surfaces and heat of two surfaces grind against each other.
I think these are the answers
Answer:
0.832
Explanation:
8.320 x 10 to the negative 1st power is 0.832
The correct answer is A: equal protection.
Further Explanation:
The fourteenth amendment was integral in granting equal rights to all citizens of the United States. This was not only for the citizens born in the country but naturalized citizens, former/freed slaves, and all children born to people not naturalized Americans.
The fourteenth amendment timeline is listed below;
- 06-08-1866 - By a vote of 33-11 the fourteenth amendment passed the Senate.
- 06-13-1866 - By a vote of 120-32 the fourteenth amendment passed the House of Representatives.
- 06-18-1866 - United States Statutes at Large, entered the amendment into text.
- 06-22-1866 - President Andrew Jackson announced that the the amendment was sent to be ratified by the states.
- 07-28-1868 - A proclamation stating the ratification was certified.
Learn more about the 14th amendment at brainly.com/question/885222
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Answer:
t< 75 nm
Explanation:
A soap bubble is a thin film where when the beam enters the film it has a 180º phase change due to the refractive index and the wavelength changes between
λ = λ₀ / n
In the case of constructive interference in the curve of the spherical film it is
2 nt = (m + ½) λ₀
Where t is the thickness of the film and n the refractive index that does not indicate that we use that of water n = 1.33, m is an integer. The thickness of the film for the first interference (m = 0) is
t = λ₀ / 4 n
A thickness less than this gives destructive interference.
Let's look for the thickness for the visible spectrum
Violet light λ₀ = 400 nm = 400 10⁻⁹ m
t₁ = 400 10⁻⁹ / 4 1.33
t₁ = 75.2 10-9 m
Red light λ₀ = 700 nm = 700 10⁻⁹ m
t₂ = 700 10⁻⁹ / 4 1.33
t₂ = 131.6 10⁻⁹ m
Therefore, for all wavelengths to have destructive interference, the thickness must be less than 75 10⁻⁹ m = 75 nm
b) a film like eta is very thin, it is achieved when gravity thins the pomp, but any movement or burst of air breaks it,
