Calculate the time required for each of the following to travel the Sun-Earth distance: (a) visible light produced in the photosphere. (b) x-rays...

Calculate the time required for each of the following to travel the Sun-Earth distance:

(a) visible light produced in the photosphere. (b) x-rays from a flare. (c) solar wind particles traveling at 400 km/s. (d) a jet aircraft traveling at 700 km/h.