Question
Armor-piercing shells with depleted uranium cores are fired by aircraft at tanks. (The high density of the uranium makes them effective.) The uranium is called depleted because it has had its $^{235}\textrm{U}$ removed for reactor use and is nearly pure $^{238}\textrm{U}$. Depleted uranium has been erroneously called non-radioactive. To demonstrate that this is wrong: (a) Calculate the activity of 60.0 g of pure $^{238}\textrm{U}$. (b) Calculate the activity of 60.0 g of natural uranium, neglecting the $^{234}\textrm{U}$ and all daughter nuclides.
1. $7.46\times 10^{5}\textrm{ Bq}$
2. $7.75\times 10^{5}\textrm{ Bq}$
Solution Video

# OpenStax College Physics Solution, Chapter 31, Problem 61 (Problems & Exercises) (3:25)

#### Sign up to view this solution video!

View sample solution

Video Transcript