An electron is projected with an initial speed vi = 3.2 x 10^5 m/s directly toward a very distant proton that is at rest. Because the proton mass is large relative to the electron mass, assume that the proton remains at rest. By calculating the work done on the electron by the electrostatic force, determine the distance between the two particles when the electron instantaneously has speed 2*vi. If there is another problem from this textbook or problem set that you would like me to explain, please send me a request. My e-mail is given in the channel description, and I've included other contact links below. If my videos have helped you, and you would like me to keep making more, please *consider* donating to my Patreon at the link below. Even a small amount of money can add up and support me immensely! My Venmo is also available. Discord server: https://discord.com/invite/8rVzwnKWkC Patreon: https://www.patreon.com/ktbmedia Twitter: https://twitter.com/KTBUpdates Instagram: https://www.instagram.com/kevinbarbuto/ Venmo: https://venmo.com/kevin-barbuto ... https://www.youtube.com/watch?v=uja4IDS6Yig

Instagram: https://www.instagram.com/ktbmedia/ Twitter: https://twitter.com/KTBUpdates At a rock concert, a dB meter registered 130 dB when placed 2.5 m in front of a loudspeaker on stage. (a) What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air? (b) How far away would the sound level be 85 dB? If there is another problem from this textbook or problem set that you would like me to explain, please send me a request. My e-mail is given in the channel description, and I've included other contact links below. If my videos have helped you, and you would like me to keep making more, please *consider* subscribing. Even one person helps and supports me immensely. :) Discord server: https://discord.com/invite/8rVzwnKWkC Misc. channel: https://www.youtube.com/@KayTeeBee Twitch: https://www.twitch.tv/ktbmedia ... https://www.youtube.com/watch?v=TIj24ZJcsqo