Which feature of this plot indicates that the neutrino has a very small rest mass?
a. The location of the peak near a kinetic energy of 0.2.
b. The overall slope between the peak and the maximum kinetic energy.
c. The value of the maximum kinetic energy.
d. The brief upward slope initially of the curve.
e. The absence of any events for large values of the kinetic energy.
c
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What is the energy released for the reaction where the products are 0.0051 u less than the reactants? (1 u = 931.5 MeV/c2)
a. 7.6 MeV c. 4.8 MeV b. 5.2 MeV d. 8.5 MeV
How does the diffraction pattern due to an opaque wire compare to the diffraction pattern due to a slit with the same width?
A. The slit creates wider pattern B. The slit creates a narrower pattern C. The slit and wire create the same pattern D. The wire does not create a diffraction pattern.
What do we mean by the term inflation?
A) a sudden and extremely rapid expansion of the universe that occurred in a tiny fraction of a second during the universe's first second of existence B) the expansion of the universe that we still observe today C) the sudden release of photons when a particle and antiparticle annihilate one another D) quantum fluctuations by high speed, relativistic particles in a state of false vacuum that caused disturbances in the space—time continuum leading to the process described in the question to which this answer refers
Identify a true statement about quasars
A) Their spectra are similar to the spectra of stars. B) Their spectra do not show any redshift. C) They exhibit fluctuations in their brightness over time scales of hours or minutes. D) They are supermassive structures with a diameter of 20 to 50 Mpc.