Author Question: If you move twice as far away from a lawn mower running in an open field, the amplitude of the sound ... (Read 79 times)

mcmcdaniel · **on:** Jul 28, 2018

If you move twice as far away from a lawn mower running in an open field, the amplitude of the sound you hear will be ___________ what it was before.
a. the same as
b. twice
c. half
d. four times
e. one fourth

Question 2

If one lawn mower causes an 80 dB sound level at a point nearby, four lawnmowers together would cause a sound level of ____________ at that point.
a. 92 dB c. 86 dB
b. 84 dB d. none of the above