Luhman 16 and wise 0720 are brown dwarfs, also known as failed stars, and are some of the new closest neighbors to earth, but were only discovered in the last decade. why do you think they took so long to be discovered?

the answer is to check all of them! they all apply well at least i think so!

12000j is work done

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form