A particle with charge q is located inside a cubical gaussian surface. No other charges are nearby. If the particle can be moved to any point within the cube, what maximum value can the flux through one face approach?
1. 0
2. q/2?0
3. q/6 ?0
4. q/8 ?0
5. depends on the size of the cube
2,3
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The hydrogen in the universe was formed by
a. the energy of the Big Bang c. radioactive decay of heavy elements b. nuclear fusion reactions in stars d. none of the above
The hydrogen spectrum has a red line at 656 nm, and a blue line at 434 nm. What is the first order angular separation between the two spectral lines obtained with a diffraction grating with 5000 rulings/cm?
A. 7.7° B. 16.6° C. 6.6° D. 3.2° E. 19.2°
The pre-Copernican astronomers shared a geocentric paradigm that included uniform circular motion, geocentrism, and the perfection of the heavens
Indicate whether the statement is true or false
What is the mean free path for the molecules in an ideal gas when the pressure is 100 kPa and the temperature is 300 K given
that the collision cross-section for the molecules of that gas is 2.0 × 10-20 m2? Boltzmann's constant is k = 1.38 × 10-23 J/K. A) 1.1 × 10-6 m B) 2.1 × 10-6 m C) 1.7 × 10-6 m D) 5.3 × 10-6 m E) 1.5 × 10-6 m