Tag: Index
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Archimedes’ Principle
Archimedes’ Principle is an essential concept in fluid mechanics that relates to the buoyant force acting on a submerged object in a fluid. It was first formulated by the ancient Greek mathematician and physicist Archimedes in the 3rd century BCE. Basic Concept and Statement of Archimedes’ Principle Archimedes’ Principle states that an object submerged in…
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Angular Momentum
Angular momentum describes the rotational motion of objects. It plays a crucial role in understanding the behavior of spinning objects and the conservation laws that govern their interactions. Note: If you’re trying to calculate angular momentum, check out our angular momentum calculators! Definition and Basic Properties Angular momentum, denoted by , is a vector quantity…
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Schrödinger Equation
The Schrödinger equation is a foundational equation in quantum mechanics that describes the evolution of quantum states over time. It was formulated by Erwin Schrödinger in 1926 and provides a mathematical framework for understanding the wave-like behavior of particles at the quantum level. The equation plays a crucial role in determining the behavior and properties…
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Phosphorescence
Phosphorescence is a type of photoluminescence in which a substance emits light after being exposed to light energy (electromagnetic radiation). Unlike fluorescence, which is usually short-lived, phosphorescence can continue to emit light for a period of time after the initial exposure. The excited electrons tend to decay at a much slower rate. This can be…
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Fluorescence
Fluorescence is a type of photoluminescence in which a substance absorbs light at a certain wavelength and then emits light at a longer wavelength, sometimes within the visible spectrum. This phenomenon is used in a wide range of applications, including biomedical imaging, chemical analysis, and materials science. One of the primary differentiating factors between fluorescence…
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Photoluminescence
Photoluminescence refers to the emission of light from a material after it has been excited by an external (photon) source, such as a laser. This process involves the absorption of a photon by the material, followed by the emission of that photon as visible light. Photoluminescence can be used to study the optical and electronic…
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Newton’s Third Law
Forces come in pairs which are of the same magnitude but opposite direction. Newton’s third law of motion, also known as the law of action and reaction, is one of the fundamental principles of classical mechanics. One of the statements of the third law is that forces come in pairs. This means that if object…
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Newton’s Second Law
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Newton’s Second Law of Motion is one of the fundamental principles of physics. It states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional…
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How much energy is required to lift a person off the ground…
How much energy is required to lift a person off the ground, and how does that compare to the energy output of a power plant?
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Newton’s First Law
An object at rest will remain at rest, and an object in motion will continue in motion with a constant velocity, unless acted upon by a net external force. In simpler terms, this means that objects tend to maintain their state of motion or rest until something acts on them. This law is one of…