my guess would be the sphere. i'm not very good at physics but i think it would be the sphere because it can roll, while the cube can't. the cube may be able to slide, but may eventually stop. it may be easier to push a sphere up a ramp better.
the missing value is the 'k' that should appear between '28' and 'g' .
nobody has a mass of 28g.
my new grandson, who was born yesterday (january 29, 2019), had a mass of 4,039g at birth.
mother and son are happy and resting comfortably today, in kfar tapuach, samaria, israel.
meiosis is the type of cell division that creates egg and sperm cells.