Author Question: The two nuclei used for the fuel in fission bombs are A) 235Th and 235U. B) 234Th and 238U. C) ... (Read 81 times)

oliviahorn72 · **on:** Jul 29, 2018

The two nuclei used for the fuel in fission bombs are

A) 235Th and 235U.
B) 234Th and 238U.
C) 235U and 239Pu.
D) 238U and 239Pu.
E) 234Th and 239Pu.

Question 2

Marcia places a lead block and an iron block on the table, and hits both of them with the same force. The lead block is twice as massive as the iron block. The acceleration of the lead block is

A) half that of the iron block.
B) a quarter of that of the iron block.
C) equal to that of the iron block.
D) two times that of the iron block.
E) four times that of the iron block.