a continuous tone of 570 hz is generated by a speaker the sound travels into a tube that splits into two segments one longer than the other the sound waves recombine before being detected by a microphone the speed of sound in air is 345 m/s what is the minimum difference in the lengths of the two paths to produce destructive interference at the microphone

- measure reactants precisely. ( first choice)

- stir to the reaction take place. ( second choice)

- wait patiently until the reaction completes. ( fourth choice)

- make sure to recover as much copper as possible. ( last choice)

a. carbon monoxide from car exhaust

b.particulate matter, such as soot

c.water vapor from a factory smokestack

d.acid rain

these are the answer choices im on that question right now