Could you solve this problem please

A laser emits a beam into the vacuum such that the wave vector is given by NI 7 2" 27\\ where A = 500 nm. The power of the beam is 100 W and its radius is 4 mm. The vector amplitude of the electric field is oriented along the positive y-direction. Knowing that the initial phase is 7T/3, a) Give the components of the electric field wave function; b) Give the components of the magnetic field wave function; The beam strikes a square plate with a side of 1 cm with a reflection coefficient R = (0.7 and a mass of 01g. c) How many photons are received by the plate per second? d) What will be the speed of the plate after 10 hours