Recent content by asifion

Thanks for the help; I figured it out.

KE = p^2 / 2m

But we aren't given any velocity

Force?

Energy? Not quite sure what you are getting at. I was thinking Ui + Ki = Uf + Kf where Ki is 0.

Since we are looking for K total, I summed the given kinetic energy for lead and the typical kinetic energy of an alpha particle: 0.12 + 5 = 5.12 MeV. My answer is definitely wrong, but I don't how I should approach the problem.

I tried the kinetic radius, which also didn't work. Is this a plausible temperature for air? Yes or No No was the correct answer.

Yes, I am; sorry for not being more specific.

The answer says incorrect.

Yes, I understand that, but do you know why the calculation is incorrect?

How does that affect the calculations and answer?

In terms of what? I'd believe that since it is just above the freezing point of air, the molecules will move slower and be more compacted.

No, I don't know the value I should get. But in the next part, the correct answer is that this is not a plausible temperature for air.

Yes we have, but I don't think the professor went into detail. But when using the equation, I get the correct answer. Thanks.

No, it should be a cold temperature since it takes them 3 whole seconds to travel such a such distance.