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- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Variational_Principles_in_Classical_Mechanics_(Cline)/04%3A_Nonlinear_Systems_and_Chaos/4.02%3A_Weak_NonlinearityMost physical oscillators become non-linear with increase in amplitude of the oscillations. Consequences of non-linearity include breakdown of superposition, introduction of additional harmonics, and ...Most physical oscillators become non-linear with increase in amplitude of the oscillations. Consequences of non-linearity include breakdown of superposition, introduction of additional harmonics, and complicated chaotic motion that has great sensitivity to the initial conditions as illustrated in this chapter. Weak non-linearity is interesting since perturbation theory can be used to solve the non-linear equations of motion.
- https://phys.libretexts.org/Bookshelves/Quantum_Mechanics/Quantum_Mechanics_(Walet)/06%3A_Scattering_from_Potential_Steps_and_Square_Barriers
- https://phys.libretexts.org/Courses/HACC_Central_Pennsylvania's_Community_College/Astronomy_103%3A_Introduction_to_Planetary_Astronomy/00%3A_Front_Matter/02%3A_InfoPageThe LibreTexts libraries are Powered by MindTouch ® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the Californ...The LibreTexts libraries are Powered by MindTouch ® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot.
- https://phys.libretexts.org/Courses/HACC_Central_Pennsylvania's_Community_College/Astronomy_103%3A_Introduction_to_Planetary_Astronomy/04%3A_Electromagnetic_RadiationWhat we call light is just a small subset of the electromagnetic radiation, which is the transmission of energy through space by varying electric and magnetic fields. The question of whether electroma...What we call light is just a small subset of the electromagnetic radiation, which is the transmission of energy through space by varying electric and magnetic fields. The question of whether electromagnetic radiation is a particle or a wave proved to be a major enigma for scientists. While it may be hard to picture a phenomenon being both a wave and a particle, modern quantum theory tells us that is indeed how matter and energy behave at the subatomic level.
- https://phys.libretexts.org/Courses/HACC_Central_Pennsylvania's_Community_College/Astronomy_103%3A_Introduction_to_Planetary_Astronomy/14%3A_Exoplanets/14.03%3A_Future_StudiesGAIA is a European mission launched by ESA in 2013 that will use interferometry to measure precise motions of a billion stars. Transit missions will continue the search for Earth-like planets that cro...GAIA is a European mission launched by ESA in 2013 that will use interferometry to measure precise motions of a billion stars. Transit missions will continue the search for Earth-like planets that cross in front of their stars and find more smaller worlds in the habitable zones. We have only begun to study the planets in our galaxy and can expect more surprises and discoveries in the coming years.
- https://phys.libretexts.org/Courses/HACC_Central_Pennsylvania's_Community_College/Astronomy_103%3A_Introduction_to_Planetary_Astronomy/14%3A_Exoplanets/14.02%3A_Orbits_of_ExoplanetsTo date, most of the detected planets have orbits smaller than Jupiter's, closer to Neptune than that of Earth. While some Earth-analogs have been found, there is a gap in our detection consisting mai...To date, most of the detected planets have orbits smaller than Jupiter's, closer to Neptune than that of Earth. While some Earth-analogs have been found, there is a gap in our detection consisting mainly of smaller planets with long (100 days or more) orbital periods As we collect and analyze more data and our techniques for finding long period exoplanets improve, we can expect that this gap will be filled in.
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/The_Physics_of_Waves_(Goergi)/07%3A_Longitudinal_Oscillations_and_Sound/7.04%3A_Chapter_ChecklistA system analogous to that in problem 7.3 is a tube of air with a piston at the top and the bottom open, as shown in Figure \( 7.9\): If the cross sectional area of the tube is \(A\), what is the anal...A system analogous to that in problem 7.3 is a tube of air with a piston at the top and the bottom open, as shown in Figure \( 7.9\): If the cross sectional area of the tube is \(A\), what is the analog in this system of the spring constant, \(K\), in problem 7.3?
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/Book%3A_Sound_-_An_Interactive_eBook_(Forinash_and_Christian)/06%3A_Wave_Behavior/6.10%3A_DiffractionSometimes waves don't travel in a straight line, even if their speed does not change (as in the case of refraction). For example, you can hear the conversation in the next room even though you cannot ...Sometimes waves don't travel in a straight line, even if their speed does not change (as in the case of refraction). For example, you can hear the conversation in the next room even though you cannot see the source. This is because sound waves undergo diffraction, bending as they go through the doorway between the two rooms.
- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Variational_Principles_in_Classical_Mechanics_(Cline)/02%3A_Review_of_Newtonian_Mechanics/2.08%3A_Total_Linear_Momentum_of_a_Many-body_SystemCenter of mass.
- https://phys.libretexts.org/Bookshelves/Nuclear_and_Particle_Physics/Introduction_to_Applied_Nuclear_Physics_(Cappellaro)/05%3A_Nuclear_Structure
- https://phys.libretexts.org/Bookshelves/University_Physics/Radically_Modern_Introductory_Physics_Text_I_(Raymond)The idea for a “radically modern” introductory physics course arose out of frustration with the standard two-semester treatment of the subject. It is basically impossible to incorporate a significant ...The idea for a “radically modern” introductory physics course arose out of frustration with the standard two-semester treatment of the subject. It is basically impossible to incorporate a significant amount of “modern physics” (meaning post-19th century!) in that format. The authors feel that an introductory physics course for non-majors should make an attempt to cover the great accomplishments of physics in the 20th century, since they form such an important part of our scientific culture.
