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Ksju [112]
3 years ago
12

In what way is a piano an example of a quantized system?

Physics
1 answer:
uranmaximum [27]3 years ago
7 0

When you play a piano, your energy increases in a uniform, continuous manner and is therefore quantized.When you play a piano, you can press only on individual keys, so that your energy is restricted to certain values and is therefore quantized.

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A 9 cm tall object is placed 16 cm from a converging lens forming an image at 13 cm. What is the height of the image?
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You want to slide a 0.39 kg book across a table. If the coefficient of kinetic friction is .21, what force is required to move t
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Find the force that would be required in the absence of friction first, then calculate the force of friction and add them together.  This is done because the friction force is going to have to be compensated for.  We will need that much more force than we otherwise would to achieve the desired acceleration:

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5 0
3 years ago
What wavelength of light (in nm) is associated with a frequency of 8.01E15 Hz?
AlekseyPX

Answer: 37.5 nm

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I use same accuracy to speed of light as it's for frequency.

Frequency f= 8.01·10^15 1/s

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6 0
2 years ago
A single-slit diffraction pattern is formed by monochromatic electromagnetic radiation from a distant source passing through a s
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Answer:

a. λ = 647.2 nm

b. I₀  9.36 x 10⁻⁵

Explanation:

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β = 56.0 rad , θ = 3.09 ° , γ = 0.170 mm = 0.170 x 10⁻³ m

a.

The wavelength of the radiation can be find using

β = 2 π / γ * sin θ

λ = [ 2π * γ * sin θ ] / β

λ = [ 2π * 0.107 x 10⁻³m * sin (3.09°) ] / 56.0 rad

λ = 647.14 x 10⁻⁹ m  ⇒  λ = 647.2 nm

b.

The intensity of the central maximum I₀

I = I₀ (4 / β² ) * sin ( β / 2)²

I = I₀ (4 / 56.0²) * [ sin (56.0 /2) ]²

I = I₀  9.36 x 10⁻⁵

8 0
3 years ago
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