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# problem_pdf - mahmud(im4673 – HW4 – Mackie –(20224 1...

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Unformatted text preview: mahmud (im4673) – HW4 – Mackie – (20224) 1 This print-out should have 23 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Two alpha particles (helium nuclei), each consisting of two protons and two neu- trons, have an electrical potential energy of 6 . 36 × 10 − 19 J . Given: k e = 8 . 98755 × 10 9 N m 2 / C 2 , q p = 1 . 6021 × 10 − 19 C , and g = 9 . 8 m / s 2 . What is the distance between these parti- cles at this time? Answer in units of m. 002 (part 1 of 2) 10.0 points An electric field does 11 J of work on a . 0004 C charge. What is the voltage change? Answer in units of V. 003 (part 2 of 2) 10.0 points The same electric field does 22 J of work on a . 0008 C charge. What is the voltage change? Answer in units of V. 004 10.0 points Two insulating spheres having radii 0 . 13 cm and 0 . 33 cm, masses 0 . 13 kg and 0 . 77 kg, and charges- 2 μ C and 2 μ C are released from rest when their centers are separated by 1 . 5 m . How fast is the smaller sphere moving when they collide? Answer in units of m / s. 005 10.0 points A uniform electric field of magnitude 264 V / m is directed in the positive x-direction. Sup- pose a 25 μ C charge moves from the origin to point A at the coordinates, (20 cm , 51 cm). x y 264 V / m O A (20 cm , 51 cm) What is the absolute value of the change in potential from the origin to point A ? Answer in units of V. 006 10.0 points A charged particle is connected to a string that is is tied to the pivot point P . The particle, string, and pivot point all lie on a horizontal table (consequently the figure...
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problem_pdf - mahmud(im4673 – HW4 – Mackie –(20224 1...

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