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worty [1.4K]
3 years ago
11

Dont skip need help ASAP and pls hurry will give 10 pts + brainliest

Physics
2 answers:
forsale [732]3 years ago
8 0
C, believe you need to test others, can’t just test one thing with eachother several times
Gemiola [76]3 years ago
3 0

Answer:

C

Explanation:

In order for an experiment to be valid need to be conducted with several tested variables

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50 c should be right
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Coherent light with wavelength 599 nm passes through two very narrow slits with separation of 20 μm, and the interference patter
goblinko [34]

Answer:

134.77 mm

Explanation:

Wave length of light λ = 599 x 10⁻⁹ m

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Putting the  values given above

distance = \frac{1.5\times599\times10^{-9}\times 3}{20\times10^{-6}}

= 134.77 x 10⁻³ m

= 134.77 mm.

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3 years ago
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Explanation:

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If time travel to the future existed, doesn't that mean that the future has already occurred and that we are living in the past?
kodGreya [7K]

Answer:

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Explanation:

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