(9%) Problem 4: Two unidentified particles enter a bubble chamber from the same side, and, under the influence of a uniform magnetic field, they leave observable paths. In the absence of further information, they will be referred to as Particle 1 and Particle 2, and their paths have been labeled accordingly. 33% Part (a) Let $q_1$ and $q_2$ be the charges of Particle 1 and Particle 2, respectively. Select all statements about the charges that are objectively true without making additional assumptions. The particles are both negatively charged: $q_1 < 0$ and $q_2 < 0$. Both particles have non-zero charges: $q_1 eq 0$ and $q_2 eq 0$. The particles have opposite-sign charges: $q_1 q_2 < 0$. The particles are both positively charged: $q_1 > 0$ and $q_2 > 0$. The magnitudes of the charges are equal: $|q_1| = |q_2|$. Submit Hint Feedback I give up! 33% Part (b) If Particle 1 is a proton and Particle 2 is an electron, then which of the following best represents the direction of the magnetic field? 33% Part (c) If Particle 1 is an electron and Particle 2 is a proton, then which statement best describes their relative speeds? Particle 1, the proton, and Particle 2, the electron, are moving at roughly the same speed. Particle 1, the proton, is moving more slowly than Particle 2, the electron. Particle 1, the proton, is moving faster than Particle 2, the electron. There is not enough information to support any of the other statements.
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Practice Test 2
Section 2
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