1,250 research outputs found
The motion of two identical masses connected by an ideal string symmetrically placed over a corner
We introduce a novel, two-mass system that slides up an inclined plane while
its center of mass moves down. The system consists of two identical masses
connected by an ideal string symmetrically placed over a corner-shaped support.
This system is similar to a double-cone that rolls up an inclined set of
V-shaped rails. We find the double-cone's motion easy to demonstrate but
difficult to analyze. Our example here is more straightforward to follow, and
the experimental observations are in good agreement with the theoretical
predictions.Comment: 10 pages, 7 figures; Accepted for publication in American Journal of
Physic
Neutrino Mass Matrices in Models with Horizontal Symmetries
We have studied the most general neutrino mass matrices in models with SU(2)
and SU(3) horizontal symmetries. Without going into the details of the models
it is possible to write down the effective operators, which predict the
structure of the Majorana neutrino mass matrices. Unlike other extensions of
the standard model, the structure is now independent of the effective Yukawa
couplings and depends entirely on the Higgs which gives mass to the other
fermions. In the case of SU(3) symmetries the lowest dimensional operators are
forbidden requiring a low mass scale for lepton number violation.Comment: 11 pages latex file, a few references added in 2nd versio
The Effects of Gaussian Noise on the Frequency Response Characteristics of a Nonlinear Feedback Control System
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