Predict/Explain Suppose the initial speed of the proton in
Chapter 22, Problem 78(choose chapter or problem)
Predict/Explain Suppose the initial speed of the proton in Figure 2245 is increased. (a) Does the radius of each halfcircular path segment increase, decrease, or stay the same? (b) Choose the best explanation from among the following: I. The radius of a circular orbit in a magnetic eld is proportional to the speed of the proton; therefore, the radius of the half-circular path will increase. II. A greater speed means the proton will experience more force from the magnetic eld, resulting in a decrease of the radius. III. The increase in speed offsets the increase in magnetic force, resulting in no change of the radius.
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