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# quiz2a - Name Class Date ID A quiz2 Multiple Choice...

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Name: ______________________ Class: _________________ Date: _________ ID: A 1 quiz2 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. If an electron is accelerated from rest through a potential difference of 1 200 V, find its approximate velocity at the end of this process. ( e = 1.6 × 10 19 C; m e = 9.1 × 10 31 kg) a. 1.0 × 10 7 m/s b. 2.1 × 10 7 m/s c. 4.8 × 10 7 m/s d. 1.4 × 10 7 m/s e. 2.5 × 10 7 m/s ____ 2. Two point charges of values +3.4 and +6.6 μ C are separated by 0.10 m. What is the electrical potential at the point midway between the two point charges? ( k e = 8.99 × 10 9 N m 2 /C 2 ) ____ 3. Two protons, each of charge 1.60 × 10 19 C, are 2.00 × 10 5 m apart. What is the change in potential energy if they are brought 1.00 × 10 5 m closer together? ( k e = 8.99 × 10 9 N·m 2 /C 2 ) a. 3.20 × 10 16 J b. 1.60 × 10 11 J c. 3.20 × 10 19 J d. 1.60 × 10 14 J e. 1.15 × 10 23 J ____

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quiz2a - Name Class Date ID A quiz2 Multiple Choice...

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