Write each number in scientific notation:
(a) The mass of the R.M.S Titanic was approximately 47 450 000 kg.
(b) The ball bearing in a pen nib has diameter 0.003 m.
(c) There are about 2 599 000 different 5-card poker hands which can be dealt.
(d) The wavelength of blue light is about 0.000 000 47 m.