The nuclear force can be all of the following EXCEPT:
d.
Protons bind with both protons and neutrons, demonstrating that the charge of the nucleon is independent of action of the strong force. The nn potential curve seems to be the same as the pp potential curve for the strong force.
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Potential of Point-Charges: A 6.9 ?C negative point charge has a positively charged particle in an elliptical orbit about it. If the mass of the positively charged particle is 1.0 ?g and its distance from the point charge varies from 4.0 mm to 16.0 mm, what is the maximum potential difference through which the positive object moves? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 12 MV B. 3.9 MV C. -5.2 MV D. 19 MV
Gaps in the asteroid belt occur at distances where
A) the density of asteroids was once so high that collisions pulverized the asteroids into dust. B) the period of an orbiting asteroid would be a simple fraction (like 1/3 or 1/4) of Jupiter's orbital period. C) the period of an orbiting asteroid would be the same as Jupiter's orbital period. D) the period of an orbiting asteroid would be the same as Mars's orbital period. E) the orbit would take the asteroid beyond the "frost line" in the solar system.
Why is the Hyades Cluster important for building up a catalog of the true luminosities of main-sequence stars?
A) It is close enough to us that the distance to its stars can be found by stellar parallax. B) It's a cluster that has been photographed over many decades, so we know how the stars vary in brightness. C) It contains many Cepheid variable stars that can be used to determine its distance. D) It is an extremely bright star cluster. E) It is an old globular cluster whose age we can determine very accurately by measuring its main-sequence turn-off point.
__________ are emitted when high speed electrons decelerate as they are smashed into a metal target
Fill in the blank(s) with correct word