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igomit [66]
2 years ago
5

Describe the difference between red light and blue light.

Physics
1 answer:
Anettt [7]2 years ago
8 0

Answer:

Red light has longer wavelength, while blue light has higher frequency

Explanation:

Red light and blue light corresponds to two different portion of the visible part of the electromagnetic spectrum.

The two colors have different wavelengths - more precisely:

Blue: 450 - 500 nm

Red: 620 - 750 nm

So, we see that red light has a longer wavelength than blue light.

Moreover, the frequency of an electromagnetic wave, f, is inversely proportional to the wavelength, \lambda:

f=\frac{c}{\lambda}

where c is the speed of light. This means that blue light, which has a shorter wavelength, has a higher frequency than red light.

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3 years ago
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Franklin needs to ship a box with FedEx. In order to calculate his shipping costs, he needs to measure the mass of the package.
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3 years ago
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A grinding wheel is a uniform cylinder with a radius of 8.65 cm and a mass of 0.400 kg . Calculate its moment of inertia about i
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Answer:

I = 1.5*10⁻³ kg*m²

Explanation:

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       I = \frac{1}{2}*m*r^{2}  = \frac{1}{2}*0.400 kg*(0.0865m)^{2}  = 1.5e-3 kg*m2

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3 years ago
Name the inertia in the following cases.
Bogdan [553]

Answer:

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