3 years ago

Another name for the horizontal rows on the periodic table of elements

Physics

2 answers:

Gnoma [55]3 years ago

8 0

Answer:

Periods

Explanation:

In-s [12.5K]3 years ago

7 0

The answer is a period your welcome

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The wall of a large room is covered with acoustic tile in which small holes are drilled 4.6 mm from center to center. How far ca

Zielflug [23.3K]

Answer:

L= 27.42m

Explanation:

We have the variables

$D=4.6*10^{-3}m$

$d= 4*10^{-3}m$

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Use the relation,

$L=\frac{D}{\theta_R} = \frac{D_d}{1.22\lambda}$

$L= \frac{(4.6*10^{-3}m)(4*10^{-3}m)}{1.22(550*10^{-9}m)}$

$L= 27.42m$

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3 years ago

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anzhelika [568]

Answer:i think it's d

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Stolb23 [73]

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4 years ago

Read 2 more answers

Why does a pendulum have periodic motion?

Igoryamba

A, B, and C are all incorrect because they are talking about springs. I'm assuming you're talking about a 2 dimensional, side to side pendulum. In that case, the answer is D because as the pendulum goes up from one side, gravity accelerates it downward until it swings to the other side. If you're not talking about this type of pendulum, leave a comment and ill come back.

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3 years ago