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
icang [17]
3 years ago
10

In the lab activity, you will examine sound waves as they are emitted from a moving source. Predict what will happen to the soun

d waves when the sound source is in motion. Record your prediction (hypothesis) as an “if then” statement. (For example: If you select the GO button, then the train will move)
Physics
2 answers:
irina1246 [14]3 years ago
6 0
<span>As a sound source gets closer, both the volume and the pitch of the sound increased. Then, as the sound source passed by you, both the volume and the pitch of the sound decreased.
 Hope this helps</span>
Serjik [45]3 years ago
5 0

Answer:

Explanation:

If the source is the same, the characteristic sound waves when they are emitted do not change (wave speed), but if the source is in relative motion with the observer, a change in the wavelength must be seen by this relative movement, such as the speed is the same this will be reflected in a change in the frequency heard by the observer

This effect is called the Doppler effect for a moving source is described by the expression, and

     f ’= [(v / (v± vs)] f

With v the speed of sound, vs the speed of the source, f the frequency emitted and f ’the frequency heard, where the sign corresponds to the source away (-) or the source approaching (-)

You might be interested in
Why is pure oxygen stored as a liquid under pressure
yKpoI14uk [10]
<h2>Answer: It is highly flammable.</h2>

Explanation:

Liquid oxygen is created from oxygen atoms that have been forced to assume the liquid state due to <u>compression (change of pressure) and temperature modification. </u>

Specifically this is achieved by cooling the oxygen enough to change it to its liquid state. So,<u> as the temperature drops, the atoms move more slowly because they have less energy. </u>

In this sense, in the liquid state it is easier to store and mobilize oxygen, taking into account that it is a highly flammable gas.

3 0
3 years ago
When a star begins to run out of fuel, what two types of stars can it become
Nikolay [14]

Answer:

A red giant or red super giant then a white dwarf

Explanation:

This also depends on what the star classification was to begin with.

7 0
3 years ago
What gases are exchanged in the respiratory system
Makovka662 [10]
Oxygon and Carbon are exchanged in the respiratory system hope this helps! :D
3 0
3 years ago
Read 2 more answers
Since Mars is smaller, how can it have an equal landmass?
Kruka [31]
With smaller mass, object should be more denser in order to have equal landmass.

Mars should be more denser, if it has equal landmass.

But in reality, it's landmass is not equal 'cause it's density is about 72% of that of earth.

Hope this helps!
4 0
3 years ago
Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its te
alexgriva [62]

Answer:

4.9 minutes

Explanation:

Given; T(t) = Ce^-kt + Ts

Now;

T(t) = 190 degrees Fahrenheit

Ts = 60 degrees

To obtain C;

190 = Ce^0 + 60

190 - 60 = C

C = 130

Hence, to find k when t=11

172 = 130 e^-11k + 60

172 -60/130 = e^-k

e^-k = 0.86

ln(e^-k) = ln( 0.86)

-k = -0.15

k = 0.15

Hence at 122 degrees, t is;

T(t) = Ce^-kt + Ts

122 = 130e^-0.15t + 60

122 - 60/130 = e^-0.15t

0.477 = e^-0.15t

ln (e^-0.15t) = ln (0.477)

-0.15t = -0.74

t = 0.74/0.15

t = 4.9 minutes

5 0
3 years ago
Other questions:
  • 11) The circumstance MOST LIKELY to cause a compass to give an erroneous reading is standing too close to
    6·1 answer
  • If baseball A is thrown horizontally, it will travel a certain distance horizontally. If the identical baseball B is thrown hori
    11·1 answer
  • 6.For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isot
    13·1 answer
  • Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase you
    6·2 answers
  • What is the connection between electrons and protons
    15·1 answer
  • An LC circuit consists of a 3.14 mH inductor and a 5.08 µF capacitor. (a) Find its impedance at 55.7 Hz. 563.57 Correct: Your an
    12·1 answer
  • For states with larger values of n that admit a d subshell, the d subshell is at even higher energy than the p subshell. In fact
    10·1 answer
  • From where does the penny that is launched into the air get its energy
    9·1 answer
  • Do this work if someone give correct answer I make her brainliest do this worksheet please
    6·2 answers
  • A tortoise can move with a speed of 10.0cm/s, while a rabbit can move 10 times faster. In a race, both of them started at the sa
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!