Two model train cars roll to the right. Both have masses of 1Kg. One has a velocity of 2m/s. It catches up with and couples to the other which had a velocity of 1m/s. What is the velocity of the combined mass? m1 v1i + m2 v2i = m1 v1f + m2 v2

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Ответ:

vallhernandez13

22.10.2020

Physics

464.8 nm

Explanation:

The second wavelength of light can be calculated using the next equation:

$\lambda = \frac{x*d}{L}$

Where:

λ : is the wavelength of light

x: is the distance from the central maximum

d: is the distance between the spots

L: is the lenght from the screen to the bright spot

For the first wavelength of light we have:

$\lambda_{1} = \frac{x_{1}*d}{L}$

$630 \cdot 10^{-9} m = \frac{0.61 m*d}{L}$

$\frac{d}{L} = \frac{630 \cdot 10^{-9} m}{0.61 m} = 1.033 \cdot 10^{-6}$ (1)

For the second wavelength of light we have:

$\lambda_{2} = \frac{x_{2}*d}{L}$

$\lambda_{2} = 0.45 m*\frac{d}{L}$ (2)

By entering equation (1) into equation (2) we have:

$\lambda_{2} = 0.45 m* 1.033 \cdot 10^{-6} = 4.648 \cdot 10^{-7} m = 464.8 nm$

Therefore, the second wavelength is 464.8 nm

I hope it helps you!

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