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olga55 [171]
3 years ago
8

HURRY ! THE BEST I WILL GIVE THE BRAINLIEST​

Physics
1 answer:
erik [133]3 years ago
6 0

The speed of both cars is the same ... 80 km per hour.

But their velocities are different, because DIRECTION is part of velocity, and their directions are different.

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Yoga not only builds flexibility, but strength and balance.<br><br> True or False
azamat

Answer:

True

Explanation:

I just know.

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What would be the orbital speed and period of a satellite in orbit 0.82 ✕ 108 m above the earth?
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The answer should be 88.56
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What were the two classifications of motion according to Aristotle?
wel

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Explanation:

8 0
2 years ago
Light of wavelength 425.0 nm in air falls at normal incidence on an oil film that is 850.0 nm thick. The oil is floating on a wa
creativ13 [48]

Answer:

in oil film        λ = 303.57 10⁻⁹ m

in the water film    λ = 319.55 10⁻⁹ m

Explanation:

When electromagnetic radiation reaches a material, its propagation is by a process that we call absorption and reflection,

when light reaches a surface it has a mass much greater than the mass of the photons (m = 0), therefore there is an elastic collision where the frequency does not change, due to the speed of light in the material medium changes, therefore the only possibility is that the wavelength in the material changes, to maintain the relationship

             v = λ f

in the void we have

             c = λ₀ f

we divide the two expression

            c / v = λ₀ / λ

the refractive index is

             

              n = c / v

              n = λ₀ /λ

              λ = λ₀ / n

let's calculate

in oil film

            λ = 425 10⁻⁹ / 1.40

            λ = 303.57 10⁻⁹ m

in the water film

            λ = 425 10⁻⁹ / 1.33

            λ = 319.55 10⁻⁹

those wavelengths are in the ultraviolet

3 0
2 years ago
Question 4 of 10
Alexus [3.1K]

Answer:

22.3 kg•m/s

Explanation:

Apex;)

7 0
3 years ago
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