For a point source at the origin, the three-dimensional neutron diffusion equation be 15.4.4 comes -dv2(r)k2d¢(r) = q8(r) apply a three-dimensional fourier transform. solve the transformed equation. trans form the solution back into r-space hint the following equations are useful 1. vf(r)eikrdr -kl2f(r)ekr d? r (2)e 1 (2t)e p(r)eikr d2r (2n)e 1 2. let d(k) -ar 1 4t 3. the fourier transform of f(r) 1s (2m)2+a2

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(ωt). suppose that e0 = 20 v/m and ω = 1.0 × 107 s−1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp, max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?