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Practice Exam 1

# Practice Exam 1 - Shaleen Shukla Physics 12 Spring 2009 1...

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Unformatted text preview: Shaleen Shukla- Physics 12 Spring 2009 1 Copy of Practice Exam #1 1 pt A charge of 3.20 C is held fixed at the origin. A second charge of 3.20 C is released from rest at the position (1.05 m, 0.552 m). If the mass of the second charge is 2.43 g, what is its speed when it moves infinitely far from the origin? (in m/s ) 1 . A 1.81 B 2.62 C 3.80 D 5.51 E 7.99 1 pt At what distance from the origin does the 3.20 C charge attain half the speed it will have at infinity? (in m ) 2 . A 1.58 B 2.10 C 2.80 D 3.72 E 4.95 1 pt A small sphere with a charge of +2.53 C is attached to a relaxed, horizontal spring whose force constant is 89.8 N/m. The spring extends along the x axis, and the sphere rests on a frictionless surface with its center at the origin. A point charge Q = -8.55 C is now moved slowly from infinity to a point x = d &amp;gt; 0 on the x axis. This causes the small sphere to move to the position x = 0.135 m. Calculate d . (in m ) 3 . A 2 . 62 10- 1 B 3 . 48 10- 1 C 4 . 63 10- 1 D 6 . 16 10- 1 E 8 . 19 10- 1 1 pt A point charge of mass 0.0728 kg and charge q = +6.50 C is suspended by a thread between the vertical parallel plates of a parallel-plate capacitor, as shown in the figure below. d q q If the angle of deflection is = 20.5 , and the separation between the plates is d = 0.0280 m, what is the potential difference between the plates?...
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Practice Exam 1 - Shaleen Shukla Physics 12 Spring 2009 1...

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