1) Consider a sample of freshly cut wood that has been reduced to pure carbon. What is the activity per gram resulting from the decay of 14C (halflife of 5730 y) in this material? [Hints: since the wood is freshly cut, the ratio of 14C to 12C is that of air; find the activity of a one gram sample.]
2) The presence of a neutrino among the decay products of a particle
a) tells us nothing about the force responsible
b) none of these
c) suggests that the strong force was at work
d) suggests that the electromagnetic force was at work
e) tells us that the weak force was at work
I have no clue about the first one (was sick and didnt go to class) but I think the second one is C.
2007-04-30 17:28:29 · 1 answers · asked by Jake D 2 in Science & Mathematics ➔ Physics
Man, you better read the book if you think it's c.
2007-05-04 14:22:33 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋