Biology
Biology, 08.01.2020 00:31, beard6488

Why does the sound of something moving away from you seem to change to a lower and lower pitch?
a)
as the source moves away, the increased distance creates more interference; so the pitch drops.
b)
as the source moves away, the frequency of the sound waves is being compressed, so the pitch drops.
c)
as the source moves away, the sound waves speed up to reach the observer; this causes the pitch to drop.
d)
as the source moves away, the sound waves stretches out relative to the person standing still; so the pitch drops.

answer
Answers: 3

Other questions on the subject: Biology

image
Biology, 22.06.2019 03:30, tucecoskun
Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto
Answers: 1
image
Biology, 22.06.2019 06:50, SmokeyRN
What is the identity of the planets?
Answers: 3
image
Biology, 22.06.2019 12:10, MIAkwicc39
What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.
Answers: 2
image
Biology, 22.06.2019 13:00, shan8747
Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.
Answers: 3
Do you know the correct answer?
Why does the sound of something moving away from you seem to change to a lower and lower pitch?

Questions in other subjects:

Konu
Biology, 30.10.2020 21:40
Konu
Spanish, 30.10.2020 21:50
Konu
Mathematics, 30.10.2020 21:50