Exercise 1

How much recoil energy does a1940K nucleus get when it emits a 2.46MeV gamma ray? (Answer in eV)

Exercise 2

Suppose two alpha particles were held together so they were just touching.

1-Estimate the electrostatic repulsive force each would exert on the other. (answer in 2 sig figures)

2-What would be the acceleration of an alpha particle subjected to this force? answer in m/s²

Exercise 3

1-The decay constant of a given nucleus is 4.610⁵s¹. What is its half-life? (T_1/2 =? hours)

Exercise 4

If an alpha particle were released from rest near the surface of a100257Fm nucleus, what would its kinetic energy be when far away? (answer in 2 sig figures in MeV)

Exercise 5

Use the figure to estimate the total binding energy of92238U and 3684Kr in MeV, in 2 sig figures.

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