Anyone a Master of Physics?

Originally posted by mtthw
Unless I'm missing something obvious...

The half-life is dependent on the material. So the two samples have the same half-life.

In which case, the ratio of their activities does not change. After one half-life, A and B have both halved their activity.

Originally posted by Ramned
ok...what is the ratio of their activities then? What will happen to their mass after 5 half lives?

Originally posted by mtthw
Both will have reduced by a factor of 2^5.

So the ratio of the activities is still 2. Or am I getting hold of the wrong end of the stick?

Last Conceptual Question

30. An antibaryon interacts with a meson. Can a baryon be produced through such an interaction? Explain.

Right, they always have the same half-lives.

(N starting amount) X 1/2 X 1/2 X 1/2 X 1/2 X 1/2 (5 halves) = 1/32 N or 1/32 of the original (amount) - - - better to say . . emissions or disintegrations per second or hour or whatever.

Originally posted by Ramned
Last Conceptual Question

[b]30. An antibaryon interacts with a meson. Can a baryon be produced through such an interaction? Explain.[/b]

I'd guess no due to conservation of parity or something like that. But I'd have to read up on it to have more than a guess.

Originally posted by mtthw
I'd guess no due to conservation of parity or something like that. But I'd have to read up on it to have more than a guess.

Originally posted by Ramned
Yes...be more specific though.
Also, under what case can it occur?

Originally posted by Ramned
Yes...be more specific though.
Also, under what case can it occur?

A question with no answer?

BUMP

Ramned, get your goddamn butt back on this thread, it was one of the more interesting ones on the whole site.

(o Y o)

because hands can be many different sizes

Originally posted by AThousandYoung
(o Y o)