With what speed must you approach a source of sound to observe a 25% change in frequency?

Question

04-03-2018
Physics

contestada

With what speed must you approach a source of sound to observe a 25% change in frequency?

Respuesta :

Otras preguntas

you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot

what's another word for over thinking?

Simplify the expressions: cot 0 sec 0 A. Sin0 B. Csc0 C. Cos0 D. Cos* 0

how were north american colonies all similar in the 1700s?

you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot

How do you?...Multiply out and simplify 10(2x-1)-20x?

What were the major causes of WWII? Please include at least 4 answers.

you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot

What is the least common denominator for 5/6 and 3/8. 3/4 and 6/7

Аноним Аноним · Answer 1 · 2018-03-04T17:57:06+01:00

Аноним Аноним

04-03-2018

sound source is at rest, you are moving with velocity v, f = frequency, c = speed of sound:

f = f0(1 + v/c)

115 = 100(1 + v/343)
115 = 100 + 100v/343
15 = 100v/343
v = 15*343/100
v = 51,45 m/s

Answer Link