🎉 Announcing Numerade's $26M Series A, led by IDG Capital!Read how Numerade will revolutionize STEM Learning Oh no! Our educators are currently working hard solving this question. In the meantime, our AI Tutor recommends this similar expert step-by-step video covering the same topics. Numerade Educator ### Problem 105 Easy Difficulty # Fission, the process that supplies energy in nuclear power plants, occurs when a heavy nucleus issplit into two medium-sized nuclei. One such reaction occurs when a neutron colliding witha$^{235} \mathrm{U}$(uranium) nucleus splits that nucleus into a$^{141} \mathrm{Ba}$(barium) nucleus and a$^{92} \mathrm{Kr}$(krypton) nucleus. In this reaction, two neutrons also are split off from the original$^{235} \mathrm{U}$Before the collision, the arrangement is as shown in Fig. 8.49$\mathrm{a}$. After the collision, the$^{141} \mathrm{Ba}$nucleus is moving in the$+z$-direction and the$^{92} \mathrm{Kr}$nucleus in the$-z$-direction. The three neutrons are moving in the$x y$-plane, as shown in Fig. 8.49$\mathrm{b}$. If the incoming neutron has an initial velocity of magnitude$3.0 \times 10^{3} \mathrm{m} / \mathrm{s}$and a final velocity of magnitude$20 \times 10^{3} \mathrm{m} / \mathrm{s}$in the directions shown, what are the speeds of the other two neutrons, and what can you say about the speeds of the 141$\mathrm{Ba}$and$^{92} \mathrm{Kr}$nuclei? (The mass of the 14$\mathrm{Ba}$nucleus is approximately$23 \times 10^{-25} \mathrm{kg},$and the mass of$^{92} \mathrm{Kr}$is about$1.5 \times 10^{-25} \mathrm{kg} . )$### Answer ##$=1.5 v_{\mathrm{Be}}\$

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Moment, Impulse, and Collisions

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##### Andy C.

University of Michigan - Ann Arbor

##### Marshall S.

University of Washington

##### Farnaz M.

Simon Fraser University

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### Video Transcript

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#### Topics

Moment, Impulse, and Collisions

##### Andy C.

University of Michigan - Ann Arbor

##### Marshall S.

University of Washington

##### Farnaz M.

Simon Fraser University

Lectures

Join Bootcamp