Which force holds the quarks together within a proton?
a) Gravity, through exchange of gravitons.
b) Proton/neutron mutual attraction forces.
c) The 'strong' force, through exchange of gluons.
d) Electromagnetic, through exchange of photons.
e) The 'weak' force, through nuclear decay.
Ans: c) The 'strong' force, through exchange of gluons.
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A. 1000 J B. 1500 J C. 2000 J D. 500 J E. 3000 J
At approximately what time would a full Moon be on your Meridian
a) noon b) midnight c) 6pm
Orion is visible on winter evenings in the northern hemisphere but not summer evenings because of
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