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Montano1993 [528]
2 years ago
7

How much force is needed to stretch a spring 1.2m if the spring constant is 8.5 N/m?

Physics
1 answer:
Assoli18 [71]2 years ago
6 0

Explanation:

spring constant k::8.5

and displacement x::1.2

f:? f: k×x

8.5×1.2:10.2N

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Infrared light of wavelength 2.5 µm illuminates a 0.20-mm-diameter hole. What is the angle of the first dark fringe in radians?
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Answer:

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or

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Explanation:

Given data

wavelength λ=2.5 µm =2.5×10⁻⁶m

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To find

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Solution

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Substitute the given values

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Θ=0.01525 rad

or

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Detailed explanation and calculation is shown in the image below

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