In this video David quickly reviews the momentum and impulse topics on the AP Physics 1 exam and solves an example problem for each concept. Created by David SantoPietro.
In this video, David quickly explains each torque and angular concept and does a sample question for each one. Created by David SantoPietro.
In this video David quickly explains each concept for waves and simple harmonic motion and does an example question for each one. Created by David SantoPietro.
Ce livre est un hommage à son travail dont la portée et le caractère précurseur nous sont plus sensibles que jamais, près d’un demi-siècle après la publication de ses articles majeurs. Puissent les jeunes d’Afrique et d’ailleurs être nombreux à suivre son exemple! À noter que les textes présentés ici (à l’exception de l’article de 1969 sur « La conférence de Nairobi » et du cahier photographique) sont aussi publiés dans l’ouvrage que j’ai co-dirigé avec Mamadou Badji Du soleil pour tous. L’énergie solaire au Sénégal : un droit, des droits, une histoire (2018, Éditions science et bien commun).
Using shell model diagram to relate absorption to emission. Derives relationship between emitted photon and energy levels, the Balmer-Rydberg equation. Created by Jay.
The simulation Sal mentions in the video can be found directly following this video in the lesson.
How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH. Can a weak acid solution have the same pH as a strong acid solution?
In this section we will be talking about the basics of acids and bases and how acid-base chemistry is related to chemical equilibrium. We will cover acid and base definitions, pH, acid-base equilibria, acid-base properties of salts, and the pH of salt solutions.
The course treats the following topics: - Relevant physical oceanography - Elements of marine geology (seafloor topography, acoustical properties of sediments and rocks) - Underwater sound propagation (ray acoustics, ocean noise) - Interaction of sound with the seafloor (reflection, scattering) - Principles of sonar (beamforming) - Underwater acoustic mapping systems (single beam echo sounding, multi-beam echo sounding, sidescan sonar) - Data analysis (refraction corrections, digital terrain modelling) - Applications (hydrographic survey planning and navigation, coastal engineering) - Current and future developments.
Introduction to Act 1.
Overview of Act 2.
Introduction to Act 3.
Adding a tail. Created by Karl Wendt.
An overview of Adding an event listener
Learn how to add event listeners in jQuery so that your JavaScript can respond to events on the page, like when a user clicks a button or drags an image.
This course will focus for a large part on MOSFET and CMOS, but also on heterojunction BJT, and photonic devices.First non-ideal characteristics of MOSFETs will be discussed, like channel-length modulation and short-channel effects. We will also pay attention to threshold voltage modification by varying the dopant concentration. Further, MOS scaling will be discussed. A combination of an n-channel and p-channel MOSFET is used for CMOS devices that form the basis for current digital technology. The operation of a CMOS inverter will be explained. We will explain in more detail how the transfer characteristics relate to the CMOS design.
Advanced Igneous Petrology covers the history of and recent developments in the study of igneous rocks. Students review the chemistry and structure of igneous rock-forming minerals and proceed to study how these minerals occur and interact in igneous rocks. The course focuses on igneous processes and how we have learned about them through studying a number of significant sites worldwide.
Application of structure and theory to the study of organic reaction mechanisms: stereochemical features including conformation and stereoelectronic effects; reaction dynamics, isotope effects and molecular orbital theory applied to pericyclic and photochemical reactions; and special reactive intermediates including carbenes, carbanions, and free radicals.
12.491 is a seminar focusing on problems of current interest in geology and geochemistry. For Fall 2005, the topic is organic geochemistry. Lectures and readings cover recent research in the development and properties of organic matter.
This course is about the electronic properties of materials and contains lectures about scattering, transport in metals, phonons and superconductivity.