Hi,
I am a German>English translator with experience in multiple Engineering disciplines (Automotive, Mechanical, Biomechanics, Civil, Railway).
$0.015 / $0.0075 per word, $5 per hour is an insult for translation of this difficulty.
My rate is minimum $0.11 per word depending on complexity (after Freelancer fee), and if you want quality human translations and have any understanding of the difficulty of translation you will be willing to pay it. If not, good luck with your shoddy translations.
Kind regards,
Pete