itzzzbry itzzzbry
  • 22-10-2020
  • Physics
contestada

Sarah hears the siren of an ambulance that is moving toward her. If the actual frequency of the siren is 2000 hertz; which frequency
washeard by Sarah?
OA. 1900
B. 2000
C. 1000
D. 2100

Sarah hears the siren of an ambulance that is moving toward her If the actual frequency of the siren is 2000 hertz which frequency washeard by Sarah OA 1900 B 2 class=

Respuesta :

pfellas
pfellas pfellas
  • 22-10-2020
If the ambulance is moving towards her she will hear a higher frequency, so answer must be D) 2100 Hz
Answer Link

Otras preguntas

Pleaseeeee helppppp will mark you as brainlist
Why do tobacco companies have people promoting free tobacco products to some people and advertise that it is glamorous to use tobacco?
if f(x) = -4(9/8)x, then what is the sum of its y-intercept and its value where x=1?
Determine the pH of a 2.8 ×10−4 M solution of Ca(OH)2.
2. What is made inside of bones that is carried throughout the circulatory system?
Make r the subject of the formula [tex]v = mg \sqrt{(1 - r {}^{2}) } [/tex]​
Find the surface area.
What is the length of the unknown leg in the right triangle?
Dry air is 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide so varying amounts of water vapor- depending on humidity. Some gases however stron
Which observation of a plant supports the inference that photosynthesis can take place? * A) a strong, sweet smell B) a rough, dry texture C) a green color D) a