can I get the answers for these physic:Theory of Electricity and Magnetism II problems?

Textbook: http://www-pnp.physics.ox.ac.uk/~gwenlan/teaching/EM/introduction-to-electrodynamics-d-j-griffiths-4ed.pdf

Problem 1 Suppose q E(r, t) = - 4 TTEOr-2 O(vt - r)f; B(r, t) = 0 (the theta function is defined in Prob. 1.45b). Show that these fields satisfy all of Maxwell's equations, and determine p and J. Describe the physical situation that gives rise to these fields. 0, for x