The most probable speed of atoms of argon (at weight = 40) at 27 °c (in m/s) is
a. ~420 m/s
b. ~350 m/s

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

i will answer your question if you answer mine

dang that balls went far