Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

The 235U absorbs a slow neutron (with little kinetic energy). becoming 236U. Ene

ID: 1583259 • Letter: T

Question

The 235U absorbs a slow neutron (with little kinetic energy). becoming 236U. Energy is transferred from mass energy to energy of the oscillations caused by the absorption. Both globs contain protons and are positively charged and thus they repel each other. But the protons and neutrons also attract one another by the strong force that binds the nucleus. Neutron (a) (c) (d) The strong force, however, decreases very quickly with distance between the globs. So, if the globs move apart enough, the electric repulsion rips apart the nucleus. This fission decreases the mass energy, thus releasing energy. The two fragments eject neutrons, further reducing mass energy. s Neutrons, Er () (1) (g) Figure 43-2 The stages of a typical fission process, according to the collective model of Bohr and Wheeler. for Fig. 43-2. What drives the oscillating lobes apart? O The electric force O The nuclear (or strong or color) force. What opposes the separation of the lobes? O The nuclear (or strong or color) force. O The electric force. What causes the lobe oscillation? O The energy added by a thermal neutron. O The energy added by a high-speed neutron. O The energy added by a thermal electron. O The energy added by a high-speed electron.

Explanation / Answer

Ans

1) Both globs contain protons, as protons are positive charges. Electric repulsion occurs between two same polarity charges. Therefore one proton repel another that causes globs to move farther apart. So answer is electric force.

2) Nuclear force between proton and neutron is very strong at smaller separation and attractive in nature. So it binds together proton and neutron and oppose separation. So answer is nuclear force.

3) when slow neutron is absorbed by uranium nucleus, the energy of neutron is converted into oscillation energy of nucles. Which causes love oscillation. So answer is energy added by thermal neutron.