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Mice21 [21]
3 years ago
8

True or false an experiment in investigating the effects and development variable on the independent variable

Physics
1 answer:
Sergeu [11.5K]3 years ago
8 0

true if you are refering to the desing of the experimnt as it does identify the variable

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4 years ago
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In measuring the width of a hair sample, a light of wavelength 500 nm is used. The hair sample is 40 um in radius. With the scre
sergejj [24]

Answer:

The distance of the second dark band away from the central bright spot be located is 5.625\times10^{-2}\ m

Explanation:

Given that,

Wave length = 500 nm

Radius d= 40\ \mu m

Distance from the hair sample D= 6 m

We need to calculate the distance of the second dark band away from the central bright spot be located

\sin\theta=\dfrac{y}{D}

\sin\theta=\dfrac{y}{6}

Using formula for dark fringe

(n-\dfrac{1}{2})\lambda=2d\sin\theta

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(2-\dfrac{1}{2})\times500\times10^{-9}=2\times40\times10^{-6}\times\dfrac{y}{6}

y=\dfrac{(2-\dfrac{1}{2})\times500\times10^{-9}\times6}{2\times40\times10^{-6}}

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y=5.625\times10^{-2}\ m

Hence, The distance of the second dark band away from the central bright spot be located is 5.625\times10^{-2}\ m

6 0
3 years ago
2 diferencias y 2 similitudes entre la actividad física y el ejercicio físico.
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If you make an electromagnet using a battery circuit and a steel nail, how can you increase its magnetic strength?
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RIGHT ANSWER I WILL GIVE BRAINLYSIT
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Answer:

The answer is...

D ( Plants use molecules of carbon dioxide to make sugar molecules.)

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Have an awesome day friend! <3

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