Apoint (a) show that the neutron flux at the distance r from the source is given by source emits s neutrons/sec isotropically in an infinite vacuum 4πr2. (b) what is the neutron current density vector at the same point? [note: neu trons do not diffuse in a vacuum.

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

Ansa new gas is observed in the form of bubbles;