Recent content by pone

Hi, I am also wondering about the first question 'uae' posed. Since he did not explain it correctly, I will elaborate a bit. 'p' is the distance of closest approach for b = 0 (b is the impact parameter). At this point, the incident kinetic energy is transformed into potential energy in the...

Homework Statement evaluate : integral of closed curve dz/(2+z*) (sorry for the lack of syntax where C is given by z=1 Homework Equations Cauchy's integral formula The Attempt at a Solution I believe I have to change the denominator in terms of z rather than z*, but I do...

I know that the units for dose rate is Gray/s or Joules/kg-second, and I figured I could just juggle around with those initial values that were given, to get my final result for the constant. Clearly that did not work out. As for what would happen if the dose rate were integrated over all space...

Homework Statement Four “point” gamma ray sources are permanently implanted in tissue so that the sources are at the corners of a 1 cm X 1 cm square. Each source has an initial activity of 15 MBq (1 Bq = one decay per second), every decay produces a 30 keV gamma ray, and the half-life is 60...

Hi, I am having much trouble on this particular question. Here it is: Four “point” gamma ray sources are permanently implanted in tissue so that the sources are at the corners of a 1 cm X 1 cm square. Each source has an initial activity of 15 MBq (1 Bq = one decay per second), every decay...

(\Triangular" distributions.) Let X be a continuous random variable with prob- ability density function f(x). Suppose that all we know about f is that a </= X </= b, f(a) = f(b) = 0, and that there exists a value c between a and b where f is at a maxi- mum. A natural density function to...