Can someone me with this question it’s to hard for me
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Physics, 21.06.2019 22:30
Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations. 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. laboratory experiments involve the identification and control of variables. d. data can only be generated through laboratory experiments, not other forms of investigation.
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Physics, 22.06.2019 22:50
What is an electric motor? explain its operation. 2-3 sentence
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Physics, 23.06.2019 02:00
How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57×10−21 newtons?
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Physics, 25.06.2019 17:30
Biology, 25.06.2019 17:30
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History, 25.06.2019 17:30
Mathematics, 25.06.2019 17:30