Posted by trigger on .
According to Einstein’s equation, what mass is equivalent to an energy of
6.7 × 10–14 J? You should use a value for c of 3.0 × 108 m s–1 and give your answer in kilograms, in scientific notation and to two significant figures. thx trigger.

math 
bobpursley,
E=Mc^2
massequivalent=E/c^2
Put this in the google search window:
6.7E14 / (3E8)^2
The units will be in kg