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
saw5 [17]
3 years ago
6

You hear the engine roaring on a race car at the starting line. Predict the changes in the sound as the race starts and the car

approaches the camera. A) The sound of the engine will get louder and the pitch lower. Eliminate B) The sound of the engine will get louder and the pitch higher. C) The sound is determined by the car and it will not change in any way. D) The sound of the engine will get louder but the pitch will not change.
Physics
2 answers:
gogolik [260]3 years ago
4 0

B. The sound of the engine will get louder and the pitch higher.

Mariana [72]3 years ago
3 0

Answer: The correct option is B.

Explanation:

Doppler effect is the phenomenon in which there is an apparent change in the frequency when there is relative motion between source and listener.

When the source and the listener are approaching each other then the frequency increases. The loudness depends on the amplitude. The energy of the wave is directly proportional to the square of the amplitude.

In the given problem, the engine is roaring on a race car at the starting line. There is change in the sound as the race starts and the car approaches the camera.

Pitch depends on the frequency.

Therefore, the sound of the wave will get louder and the pitch will get higher.

You might be interested in
A 1,300 kg wrecking ball hits the building at 1.07 m/s2.
dezoksy [38]
So we know F=ma
m means mass and a means acceleration
so Force= ma
so F=1300X1.07=1391N
hope you like it
if it helps you please mark the answer as brainliest answer
7 0
3 years ago
Read 2 more answers
What type of plate boundary decreases the amount of the Earth's crust?
rosijanka [135]

Answer:

Convergent.

Explanation:

Just as oceanic crust is formed at mid-ocean ridges, it is destroyed in subduction zones. Subduction is the important geologic process in which a tectonic plate made of dense lithospheric material melts or falls below a plate made of less-dense lithosphere at a convergent plate boundary.

3 0
3 years ago
While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile’s acceleration?
Nimfa-mama [501]

Average Acceleration = (change in speed) / (time for the change)

Change in speed = (ending speed) - (starting speed)

                             =   15 m/s - 24 m/s  =  -9 m/s

Acceleration =  (-9 m/s) / (12 sec) =  - 0.75 m/s² .

6 0
3 years ago
Two ways that radio waves are used for transmitting information. Help me please.
Travka [436]
1. Stop transmitting start and stop sending photons. This is typical morse code like transmissions of information. By varying the pattern of starts stops you vary the information sent. Also used in digital communications over radios, modems, and pulse dialing over radio/phones. 

<span>2. Change the frequency. You use a pattern of shorter and longer wavelengths of radio waves higher and lower energies of individual photons to transmit information. This is frequency modulation </span>
3 0
3 years ago
5. A piece of metal weighing 50 g and specific heat capacity 0.11 calg is heated to 100°C. The metal is dropped to a calorimeter
Ulleksa [173]

Explanation:

googlmeet join community cet-uije-bqs

7 0
3 years ago
Other questions:
  • Estimate the peak wavelength for radiation from ice at 273 k.
    10·1 answer
  • You must raise the weight to a height of 10 meters. You cannot do it! Thinking back to what you have learned in science class, y
    15·2 answers
  • What is potential energy? <br><br> Energy released<br> Energy stored<br> Moving Energy
    11·2 answers
  • How can philosophy help you become a productive citizen<br>​
    13·1 answer
  • A block with mass m =7.4 kg is hung from a vertical spring. when the mass hangs in equilibrium, the spring stretches x = 0.22 m.
    8·1 answer
  • 3. When you slow for a turn, some traction is used to slow, and some is (1 point).
    8·2 answers
  • Can electrostatic attract both pull and pull?
    14·2 answers
  • A 1500kg car accelerates uniformly from 14m/s to 23m/s in 10.0s. What was the
    13·1 answer
  • 1.is anyone else bored with school<br><br> 2. is anyone getting out of school soon or at 3
    8·1 answer
  • Which of the following is correct concerning the uncontrolled burn phase?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!