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3 years ago

13

The _____ is the process scientists use to conduct research, which includes a continuing cycle of exploration, critical thinking

, and systematic observation.
experimental method

scientific method

subjective experience

Institutional Review Board

2 answers:

bonufazy [111]3 years ago

8 0

I believe it’s the scientific method or either the experimental method

trasher [3.6K]3 years ago

6 0

I believe it is the scientific method

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SIZIF [17.4K]

C is the first & the second question is A

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An old-fashioned LP record rotates at 33 1/3 RPM

Ksenya-84 [330]

Answer:

Part a) $\frac{5}{9}\ \frac{rev}{sec}$

Part b) $\frac{9}{5}\ \frac{sec}{rev}$

Explanation:

Part a) what is its frequency, in rev/s

we have that

An old-fashioned LP record rotates at 33 1/3 RPM

so

$33\frac{1}{3}\ \frac{rev}{min}$

Convert mixed number to an improper fraction

$33\frac{1}{3}\ \frac{rev}{min}=\frac{33*3+1}{3}=\frac{100}{3}\ \frac{rev}{min}$

Remember that

$1\ min=60\ sec$

Convert rev/min to rev/sec

$\frac{100}{3}\ \frac{rev}{min}=\frac{100}{3}(\frac{1}{60})=\frac{100}{180}\ \frac{rev}{sec}$

Simplify

$\frac{5}{9}\ \frac{rev}{sec}$

Part b) what is it period, in seconds

we know that

The period is the reciprocal of the frequency

therefore

the frequency is

$\frac{9}{5}\ \frac{sec}{rev}$

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3 years ago

The modern periodic table is arranged in order of increasing atomic

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The periodic table is in increasing atomic mass. Hope this helped.

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Answer:

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Explanation:

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