Brian uses a starter pistol to mark the start of a 100 m sprint. The sound wave produced by the pistol reflects from a nearby wall, and he hears the echo of the
shot 600 ms (milliseconds) after the pistol was fired. Calculate how far the wall
was from Brian. The speed of sound in air is approximately

Multiple choice
330 m/s.
990 m
0 1,980 m
99 m
198 m

d is the answer i came up with

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6