Barney ran 2 times around the 1/4 mile track in 4 minutes. what is his total displacement

.5 miles because the track is 1/4 miles long and how i did it was i converted it to decimals and got .25 so then i added .25+.25=.5

This is what i found on google “lithium and sulfide can react together to form litium sulfide(li2s). when lithium sulfide hydrolyses(breaks down) in air, it releases hydrogen sulfide which is characteristized by a rotten egg odor.” i hope this you for what your looking for