Problem 88AE
An electron is accelerated through an electric potential to a kinetic energy of 18.6 keV. What is its characteristic wavelength? [Hint: Recall that the kinetic energy of a moving object is , where m is the mass of the object and v is the speed of the object.]
Thursday, February 2, 2017 Mountain Climate (Part 1) Terms Key Concepts The Solar Source - Hydrogen is being converted into helium; gives out energy The Sun emits two forms of energy that interact with the Earth: Charged particles (solar wind) from corona • • Electromagnetic energy Charged particles are mostly intercepted by the Earth’s magnetic shield, and produce phenomena like geomagnetic storms, and aurora. Electromagnetic energy travels much faster and mostly does not interact with the Earth’s atmosphere, so it is what powers all weather and climate processes Evidence of solar storms - sunspots - Big dark areas on the sun - A cooler spot on the sun’s surface; a storm (faculae) Charged particles interact with Earth’s magnetosphere - produces a zone
