When writing resonance structures, it's essential to follow certain rules: only electrons move, not atoms; all structures must have valid bonding; and charges should be minimized. These guidelines ensure resonance structures accurately...

Resonance requires specific conditions for electron delocalization. The molecule must have a conjugated system with alternating single and double bonds, and atoms must be capable of sharing electrons. Acetamide and the carbonate ion are...

Health insurance: the holy grail of the US hospital patient. While it isn’t perfect, it does often make a big difference in a patient’s bottom line. That’s not only because it helps pay the bills - it turns out that when you don’t have...

Delve into the mass spectrometer, a crucial tool for understanding particles and their properties. Consisting of a velocity selector and a deflection chamber, it begins with charges entering the crossed fields of magnetic and electric...

In this episode of Flipping Physics, we delve into the intriguing world of magnetic forces in current-carrying wires. Ever wondered how the net magnetic force on a wire is calculated when charges are on the move in a wire? We break down...

Double replacement chemical reactions, also known as precipitation reactions, are reactions where 2 elements are replaced. But you have to make sure that you replace the correct elements! In this video, we show you not only how to...

This video uses a real-life scenario to teach students how to convert decimal fractions to like denominators and then add them.

This video tells the story of Senator Joseph McCarthy's rise and fall during the 1950s, as he accused individuals of communist ties during the Cold War era. The Army-McCarthy hearings in 1954, broadcast live on television, led to a...

This video covers: - That static charge builds up on non-conducting materials by the transfer of electrons - Static charge doesn't normally build up on conducting materials, but can occasionally - When static charge is discharged it can...

In this video we cover: - Oxidation and reduction in terms of oxygen and electrons - Redox reactions - Displacement reactions - Ionic equations - Half equations This video is suitable for: - Higher tier only - All exam boards - Triple...

In this video, the basics of electric circuits are discussed. The components of an electric circuit such as wires, batteries, resistors, capacitors, and switches are introduced with their respective symbols. The concept of electromotive...

In this video, the relationship between current density, conductivity, and electric field is discussed, with a focus on Ohm's law and resistivity. The video also covers the differences between resistance and resistivity. The practical...

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San Anto
nio, Texas

>March 10, 1992

Alfonso Lopez, Jr., a senior at Edison High School, brings a concealed .38 caliber revolver into the school. Although the...

In this math video we will write and use a real world expression with Unit Rate. We will understand that "per" means to multiply in math. We will interpret a real world situation and translate the language into a math expression. We will...

Learn about the energy stored in a capacitor. Derive the equation and explore the work needed to charge a capacitor.

This video explores the science behind capacitors, including what they are, how they work, and how they store electric potential energy in an electric field. The definition of capacitance is given, as well as the units and symbols used...

We explore the concept of electric current and conventional current, which is the direction that positive charges flow, and the reality that electrons move in the opposite direction in most circuits. We derive the equation for average...

The Salem Witch Trials are one of the most infamous tragedies in American history, yet most people do not know the story of the enslaved woman at the heart of the hysteria, the first accused witch, Tituba.

On the divergence field In Gauss law The operator that works on a vector field.
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A normal explanation of the divergence operator, is saying that it measures how much is flowing in or out in a given area. In this video we...

Learn 3 of the 4 things you need to remember about conductors in electrostatic equilibrium, including that the electric field inside is zero, excess charges are located on the surface, and the electric field just outside the surface is...

Learn about conductors in electrostatic equilibrium! Today, we'll go over the last of the four key points to remember. See how the local surface charge density is at its maximum where the radius of curvature is at its minimum. Learn how...

Earth's Magnetic Field explores the importance of Earth’s magnetic field by examining the crucial role it plays on the planet.

In this short math video we will be comparing linear functions using unit rates & one time fees to answer a standardized math test question. We will consider two different bills with costs incurred for hourly rate (unit rate or slope)...

The electric potential difference in a uniform electric field is derived and used to show lines of equal electric potential or equipotential lines. Equipotential lines and surfaces of point charges and dipoles are shown. The equation for...