15. A mosquito flaps its wings 800 vibrations per second. What is the frequency of the buzz?
What is the period of the buzz?
Assuming sound
travels at 340 m/s, how far does the sound travel between wing beats? (wavelength of
the sound)

0.57 meters

Step-by-step explanation:

peed = wavelength x frequency

wavelength = speed/frequency

= (340 m/s)/(600 Hz)

= 0.57 meters

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event