1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivolga24 [154]
3 years ago
15

The Doppler effect is an effect produced by a moving source of sound or electromagnetic waves due to the relative motion of a so

urce or a receiver. If an emergency vehicle approaches Bob and moves away from Jill, how does the frequency of the siren change?
A) Neither Bob or Jill perceive any change in the frequency of the siren.
B) As an emergency vehicle approaches Bob the frequency appears to increase.
C) As an emergency vehicle moves away from Jill the frequency appears to increase.
D) Bob does not notice any change until the vehicle passes him and the siren increases.
Mathematics
1 answer:
IgorC [24]3 years ago
4 0

Answer:

b

Step-by-step explanation:

You might be interested in
Plz
allsm [11]
Top box is 2x
bottom box is 3
4 0
3 years ago
Please help me with number 9 :(
nata0808 [166]

Answer: I think he had started with 60 chips!

<em>have a good day/night! :D</em>

5 0
2 years ago
PlZZZ help picture attached
larisa86 [58]
1/2 divided by 1/6 is 3 or 3/1 
you  have to divide 2 to 6 and u get 3 
4 0
3 years ago
Read 2 more answers
Given angle A B C , in which Line AD bisects angle BAC. If m angle B=64 and m angle C =42, determine m angle BAD.
Andrew [12]
D=54 i might be wrong
3 0
3 years ago
What integer is closet to n​
11Alexandr11 [23.1K]

Answer:

Rounding to the Nearest Integer

The most common type of rounding is to round to the nearest integer. The rule for rounding is simple: look at the digits in the tenth's place (the first digit to the right of the decimal point).

7 0
2 years ago
Other questions:
  • What is the name of line segment an on the circle below ​
    5·1 answer
  • Convert 0.656 to fraction
    13·2 answers
  • Refer to the number line given. List two situations or problems for which you have used a number line in the past.
    9·1 answer
  • Solve the system of linear equations using any method: <br> y=-x+4<br> y=2x-8
    12·1 answer
  • Checking my kids math homework- I HATE common corpse! What is 12 divided by 2.436
    13·1 answer
  • Solve the following equation for a : (1/(a+2)) + (1/(a-2)) =4/(a²-4).
    5·1 answer
  • Write two sentences to match this numerical expression:7 times 3
    5·2 answers
  • HELP!!! MATH PROBABILITY QUESTION!
    13·2 answers
  • 1. A rectangular garden has a perimeter of
    12·1 answer
  • X+3y=6 solve slope intercept
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!