Answers: 3
Physics, 21.06.2019 21:30
The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?
Answers: 1
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.
Answers: 3
Physics, 22.06.2019 05:00
Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?
Answers: 1
Physics, 22.06.2019 11:10
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
How do power plants generate electricity?...
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