The variables length l, gravity g, velocity V, and density ? can be combined into the dimensionless term:
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Assume you are a particle in a box called the universe. Estimate your minimum kinetic energy. (Assume the "edge" of the box is at a distance of 20. Giga Light Years.)
What will be an ideal response?
A long linear charge distribution of charge density 1.35 nC/m is surrounded by a concentric cylindrical surface of length 1.60 m and radius 23.6 cm. What is the magnitude of the electric field at the curved surface of the cylinder?
A. 436 N/C B. 103 N/C C. 51.5 N/C D. 135 N/C E. 0.0
What would happen to the core of the sun if its temperature rose slightly?
A) The rate at which fusion occurs would increase, leading to a contraction of the core, which would in turn cause the temperature to rise even further. B) The rate at which fusion occurs would decrease, leading to a contraction of the core, which would in turn cause a further temperature rise. C) The rate at which fusion occurs would decrease, leading to an expansion of the core, which would in turn cause the temperature to drop back down. D) The rate at which fusion occurs would increase, leading to an expansion of the core, which would in turn cause the temperature to drop back down.
Why does the W3C recommend the WOFF font packaging format?
A. Because it can be red by Windows and Macintosh systems. B. Because it includes compression. C. Because it can be embedded into a webpage's CSS specifications. D. All of the above.