Calculate the slope of the distance vs time squared graph on the graph page itself. How does the value compare to the value for the acceleration found in calculation 2?
[Ques. 2] Assume a uniformly charged ring of radius R and charge Q produces an electric field Ering at a point P on its axis, at distance x away from the center of the ring as in Figure OQ23.13a. Now the same charge Q is spread uniformly over the circular area the ring encloses, forming a flat disk of charge with the same radius as in Figure OQ23.13b. How does the field Edisk produced by the disk at P compare with the field produced by the ring at the same point?
[Ques. 3] What kinematic concept (distance, velocity, acceleration, etc.) of the moving object does the slope of the graph represent?
[Ques. 4] What do you think is the greatest source of error in this experiment? Justify your answer.
[Ques. 5] Is it possible for an object to have a velocity of zero and a numerical value for acceleration? Justify your answer with an example.
[Ques. 6] Is it possible for an object to have an acceleration of zero and a numerical value for velocity? Justify your answer with an example.
[Ques. 7] A circular ring of charge with radius b has total charge q uniformly distributed around it. What is the magnitude of the electric field at the center of the ring?
1. 0
2. keq/b2
3. keq2/b2
4. keq2/b
5. none of those answers
[Ques. 8] What do we mean by uniform linear motion?
[Ques. 9] Three charged particles are arranged on corners of a square as shown in Figure OQ23.11, with charge -Q on both the particle at the upper left corner and the particle at the lower right corner and with charge +2Q on the particle at the lower left corner. Suppose the +2Q charge at the lower left corner is removed. Then the magnitude of the field at the upper right corner:
1.becomes larger.
2.becomes smaller.
3.stays the same.
4.changes unpredictably.
[Ques. 10]
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