Quarks are bound together in hadrons by
a. the strong force. b. the weak force.
c. intermediate (or gauge) bosons. d. the color force.
d
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An "onion skin" shell burning structure develops in:
A. a star much less massive than the Sun. B. a white dwarf. C. a star like the Sun. D. a neutron star. E. a star much more massive than the Sun.
Initially, fewer neutrinos were detected than predicted by theoretical models because
A) neutrinos changed form to undetected types of neutrinos. B) the wrong liquid was being used in neutrino detectors. C) particle physicists did not understand the proton-proton chain. D) the proton-proton chain does not actually produce neutrinos. E) neutrinos take many years to pass out of the sun from its core.
A toy rocket that weighs 10 N blasts straight up from ground level with an initial kinetic energy of 40 J. At the exact top of its trajectory, its total mechanical energy is 140 J
To what vertical height above the ground does it rise, assuming no air resistance? A) 10 m B) 24 m C) 1.0 m D) 14 m
Heating the air in a hot air balloon reduces the air's _________
Fill in the blank(s) with correct word