An archaeologist finds the 14C in a sample of of material to be decaying at 107 counts per second. A modern 1.00-g sample of the same material decays at 151 counts per second. The half-life of 14C is 5730 y. How old is the sample?

A) 12,200 y
B) 8460 y
C) 25,100 y
D) 12,600 y


Answer: A

Physics & Space Science

You might also like to view...

Determine the missing product X in the reaction: n + U ? X + 2( e)

What will be an ideal response?

Physics & Space Science

How does Pluto's mass compare with that of Earth's Moon?

a) The Moon is roughly 7 times more massive than Pluto. b) Pluto is roughly 7 times more massive that the Moon. c) They both have the same mass. d) Pluto's mass is roughly 1/20th the mass of the Moon. e) The Moon's mass is roughly 1/20th the mass of Pluto.

Physics & Space Science

Explain differential rotation and Keplerian motion

What will be an ideal response?

Physics & Space Science

The rotation curve of the galaxy provides evidence for the existence of the ____________________ which extends beyond the halo of the galaxy

Fill in the blank(s) with correct word

Physics & Space Science