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Developer Notes - University of Hawaii System
... Just like with magnets, opposite electric charges attract each other, and like charges repel. When you rub a balloon in your hair, electrons are drawn to the balloon from your hair, so your hair and the balloon have opposite charges – they attract each other. At the same time, your hair has a positi ...
... Just like with magnets, opposite electric charges attract each other, and like charges repel. When you rub a balloon in your hair, electrons are drawn to the balloon from your hair, so your hair and the balloon have opposite charges – they attract each other. At the same time, your hair has a positi ...
forces and newton s laws of motion
... Q4.8. Reason: (a) During the first collision a person in the car continues in their state of motion until a force acts to change their motion. This will happen when the seatbelt engages or when the person hits something on the inside of the car. Likewise, internal organs will continue in their state ...
... Q4.8. Reason: (a) During the first collision a person in the car continues in their state of motion until a force acts to change their motion. This will happen when the seatbelt engages or when the person hits something on the inside of the car. Likewise, internal organs will continue in their state ...
GCE Physics Teachers` Guide pdf
... The old PH2 section on energy levels and line spectra is now seen to have interesting applications: it has been extended to include a treatment of lasers, while line absorption spectra are shown to give us information about the atmosphere of stars. In fact, there is a small section devoted to the ph ...
... The old PH2 section on energy levels and line spectra is now seen to have interesting applications: it has been extended to include a treatment of lasers, while line absorption spectra are shown to give us information about the atmosphere of stars. In fact, there is a small section devoted to the ph ...
PH213 Chapter 27 Solutions
... on the positive and negative z axis. If the charge is positive, the electric field should point outward. For points on the positive z axis, the field points in the positive z direction, which is outward from the origin. For points on the negative z axis, the field points in the negative z direction, ...
... on the positive and negative z axis. If the charge is positive, the electric field should point outward. For points on the positive z axis, the field points in the positive z direction, which is outward from the origin. For points on the negative z axis, the field points in the negative z direction, ...
Fundamental interaction
Fundamental interactions, also known as fundamental forces, are the interactions in physical systems that don't appear to be reducible to more basic interactions. There are four conventionally accepted fundamental interactions—gravitational, electromagnetic, strong nuclear, and weak nuclear. Each one is understood as the dynamics of a field. The gravitational force is modeled as a continuous classical field. The other three are each modeled as discrete quantum fields, and exhibit a measurable unit or elementary particle.Gravitation and electromagnetism act over a potentially infinite distance across the universe. They mediate macroscopic phenomena every day. The other two fields act over minuscule, subatomic distances. The strong nuclear interaction is responsible for the binding of atomic nuclei. The weak nuclear interaction also acts on the nucleus, mediating radioactive decay.Theoretical physicists working beyond the Standard Model seek to quantize the gravitational field toward predictions that particle physicists can experimentally confirm, thus yielding acceptance to a theory of quantum gravity (QG). (Phenomena suitable to model as a fifth force—perhaps an added gravitational effect—remain widely disputed). Other theorists seek to unite the electroweak and strong fields within a Grand Unified Theory (GUT). While all four fundamental interactions are widely thought to align at an extremely minuscule scale, particle accelerators cannot produce the massive energy levels required to experimentally probe at that Planck scale (which would experimentally confirm such theories). Yet some theories, such as the string theory, seek both QG and GUT within one framework, unifying all four fundamental interactions along with mass generation within a theory of everything (ToE).