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frutty [35]
4 years ago
9

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific invest

igations. In what way do laboratory experiments primarily differ from other forms of scientific investigations?
A.
A laboratory experiment is the only accepted form of investigation within the scientific community.
B.
Studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.
C.
Data can only be generated through laboratory experiments, not other forms of investigation.
D.
Laboratory experiments involve the identification and control of variables.
Physics
1 answer:
Ne4ueva [31]4 years ago
8 0

Answer:

C

Explanation:

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kupik [55]

Answer:

RMS voltage is 113.1370 V

frequency is 780.685 Hz

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Explanation:

Given data

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time t = 1/106 s

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to find out

RMS voltage and frequency of the source and  voltage  and maximum current

solution

we know voltage equation = Vmax sin ωt

here Vmax is 160 as given equation in question

so RMS will be Vmax / √2

RMS voltage = 160/ √2

RMS voltage is 113.1370 V

and frequency = angular frequency / 2π

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frequency is 780.685 Hz

voltage at time (1/106) s

V(t) = 160.0 sin(495/ 108)

voltage = −158.66942 V

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