The phasor magnetic field intensity for a 400 MHz uniform plane wave propagating in a certain lossless material is (2ay − j5az)e−j25x A/m. Knowing that the maximum amplitude of E is 1500 V/m, find β, η, λ, νp, r, µr, and H(x, y, z, t):

H = (ax - 5az)e-j25x A/m. Determine the values for K, εr, λ, vp and n in that order. Report your answer for Vp in terms of c, the speed of light in free space.

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p