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marishachu [46]
3 years ago
12

Sunlight is composed of wavelengths of light that make up part of the electromagnetic spectrum. Towson University Exam Question.

The frequency of a wave is directly proportional to the speed at which the wave is traveling. Do NOT Copy! Calculate the frequency (in Hz) of light at the following wavelength:
Physics
1 answer:
Helen [10]3 years ago
4 0

Answer:

f= 5.11 * 10^{10}Hz

Explanation:

Given

\lambda = 0.587cm

<em>See comment for complete question</em>

Required

Calculate the frequency

Frequency is calculated using:

f = \frac{c}{\lambda}

Where

c \to speed of light

c =299792458 ms^{-1}

\lambda = 0.587cm

Convert wave length to meters

\lambda = 0.587 * 0.01m

\lambda = 0.00587m

So, we have:

f = \frac{c}{\lambda}

f=\frac{299792458 ms^{-1}}{0.00587m}

f=\frac{299792458}{0.00587}Hz

f= 5.11 * 10^{10}Hz

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stiks02 [169]

Answer:

Al llegar a su equilibrio térmico ambas barran tendrán una temperatura de 53 grados centígrados.

Explanation:

Dado que una barra de aluminio que está a 78 grados centígrados entra en contacto con una barra de cobre de la misma longitud y área que esta a 28 grados centígrados, y posteriormente se lleva acabo la transferencia de energía entre ambas barras llegando a su equilibrio térmico, para determinar la temperatura a la que ambas barras llegarán se debe realizar el siguiente cálculo:

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Por lo tanto, al llegar a su equilibrio térmico ambas barran tendrán una temperatura de 53 grados centígrados.

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