The laser pointer emits light because electrons in the material are excited (by a battery) from their ground state to an upper excited state. when the electrons return to the ground state, they lose the excess energy in the form of 660. nm photons. what is the energy gap between the ground state and excited state in the laser material?

Writing prompt: read the article, “ending school segregation in the us.” why is the event described in the article taught in schools today? what are the lasting lessons that we can learn from studying this event? support your response with textual evidence. 1. read the article. 2. consider the answers to the questions. 3. use the race graphic organizer to organize your thoughts. 4. construct a paragraph using the race writing including textual evidence (see textual evidence notes for assistance with how to include this information) from the article and answers to the question. 5. check for capitalization, punctuation, and grammar.

Name two things the mycenaeans learned from the minoans

What is a country called that is technically independant but is controlled by another country