In producing a uranium bomb, the most difficult step is A) ...

[sabina]

In producing a uranium bomb, the most difficult step is
 
  A) getting the uranium into gaseous form
  B) finding and mining the uranium.
  C) separating the fissionable isotope from the non-fissionable isotope.
  D) constructing the triggering mechanism.
  E) keeping it from blowing up during construction.

Question 2

Find the net work done by friction on the body of a snake slithering in a complete circle of 3.93 m radius. The coefficient of friction between the ground and the snake is 0.25, and the snake's weight is
 
  A) -330 J
  B) 0 J
  C) -3300 J
  D) -670 J

[wfdfwc23]

Answer to Question 1

C

Answer to Question 2

A

[sabina]

Thanks for the timely response, appreciate it

[xiazhe]

Excellent