substitutions, and steps to your final answer. Multiple choices questions will b

Question

substitutions, and steps to your final answer. Multiple choices questions will be now llW cluding equations used, given. Try to work out problems with symbols for as long as is practical, but clearly Partial credit may be define each symbol. Circle your final answer. Include units while working out the problem. Illegible work will not be graded. Clearly number each problem, and clearly number each page. Scratch paper may be used, but do not turn it in for grading. All problems have equal value outside of the exam room, DO NOT take your cell phone with you. . ALL CELL PHONES MUST BE OFF!!! If you need a break 1) A piece of plastic has a net charge of +2.00 C How many more protons than electrons does this piece of plastic have? (e = 1.60 × 10-19 C) A) 1.25 × 1013 B) 1.25 × 1019 C) 2.50 × 10 13 D) 2.50 × 1019

Explanation / Answer

Number of more proton = charge /e = 2 *10-6/ 1.6*10-19

  = 1.25 x 1013

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