RF converts to MJ at a rate of 10:1, so 80RF is 8 MJ. Also, you don't need a tesseract to convert RF to MJ, you just need an energy conduit that is connected to a MJ consuming machine. As for how many dynamos you need to power a quarry, quarries take up to 100MJ per tick (MJ/t), but will run perfectly fine on 25MJ/t.Jan 29, 2014