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labwork [276]
2 years ago
12

Sound that reaches the ears after bouncing off a wall or a floor is called _____.

Physics
2 answers:
andrew11 [14]2 years ago
8 0

Answer:

Indirect sound

BartSMP [9]2 years ago
3 0

Answer:

ecolocation I think but it is not for human ears

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A slit of width 2.0 μm is used in a single slit experiment with light of wavelength 650 nm. If the intensity at the central maxi
Valentin [98]

Answer:

The intensity at 10° from the center is 3.06 × 10⁻⁴I₀

Explanation:

The intensity of light I = I₀(sinα/α)² where α = πasinθ/λ

I₀ = maximum intensity of light

a = slit width = 2.0 μm = 2.0 × 10⁻⁶ m

θ = angle at intensity point = 10°

λ = wavelength of light = 650 nm = 650 × 10⁻⁹ m

α = πasinθ/λ

= π(2.0 × 10⁻⁶ m)sin10°/650 × 10⁻⁹ m

= 1.0911/650 × 10³

= 0.001679 × 10³

= 1.679

Now, the intensity I is

I = I₀(sinα/α)²

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= I₀(0.0293/1.679)²

= 0.0175²I₀

= 0.0003063I₀

= 3.06 × 10⁻⁴I₀

So, the intensity at 10° from the center is 3.06 × 10⁻⁴I₀

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Please Help Me With This:
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To find the relative frequencies, divide each frequency by the total number of throws - in this case, 100.

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The event of landing in the red region has a relative frequency of  0.1 which means the dart landed in the red region about 10% (0.1  x 100%) of the time.

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