no tagsQuiz002SteveSekula, 2 September 2010 (created 2 September 2010)Name:________________________________________Date:_________________________________________Rules for the Quiz:You are given 5 minutes at the beginning to look over the quizquietly and jot some notes on a 3x5-inch notecard. Use this time tothink about how to attack the quiz problem(s)You are given 10 minutes in the middle to discuss the quiz with yourteammates. Use this time to develop strategies across the group forattacking the problem(s). You are allowed to keep notes from thisdiscussion on the SAME 3x5-inch notecard.You then have 15 minutes at the end to work individually (NO MOREDISCUSSION) to solve the problem(s). Use your notes on the 3x5-inchcard to help you attack the problem(s)You are allowed to use a calculatorYour grade will be determined from the weighted-average of yourgroup and not from your individual performance. The highest gradewill be weighted the most, and the lowest the least. Low grades willdrag the average down, so it is in your best interest to collaborateduring the discussion part of this quiz. All members of your team getthe same grade, determined from that weighted average.Lightning occurs when friction in the atmosphere, due to collisionsbetween ice crystals and water droplets, causes the build-up of acharge in clouds. Heavy, slightly negatively charged ice-water dropletsfall to the bottom of the cloud while lighter, slightly positively chargedice crystals rise to the top of the cloud. Consider the sketch below ofsuch a situation in clouds.1.General Physics - E&M (PHY 1308) LectureNotesGeneral Physics - E&M (PHY 1308) LectureNotesGeneral Physics - E&M (PHY 1308) - Lecture Notes file:///home/sekula/Documents/Notebooks/PHY1308...1 of 2 09/02/2010 05:32 PMWhat is the magnitude of the force exerted by a single, positivelycharged ice crystal at the top of the cloud on a single, negativelycharged ice-water droplet at the bottom of the cloud, assuming thecharges are separated by ? Assume that the magnitude ofthe charges are both equal to .a.If a typical cloud-to-cloud lightning flash delivers of chargefrom one side of the cloud to the other, how many elementarycharges are transferred?b.2:0 0 m  133:0 0 C  1À1710:0C General Physics - E&M (PHY 1308) - Lecture Notes file:///home/sekula/Documents/Notebooks/PHY1308...2 of 2 09/02/2010 05:32
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