ANSWER QUICKLY PLEASE A moving sidewalk has a velocity of 1.5 m/s north. If a man walks south on the sidewalk at a speed of 0.8 m/s, how long does it take him to travel 10 m relative to a stationary observer?
A. 14.3 s
B. 12.4 s
C. 9.5 s
D. 6.7 s

Ifound this on google “your outer ear collects sound waves and reflects them into a tiny tube called the ear canal. at the end of the ear canal is a thin, skin-like membrane stretched tightly over the opening, called the eardrum.” i hope this you for what your looking for

Idon't know it i just need my points lol