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
astra-53 [7]
3 years ago
9

A car is moving towards a student at constant speed. The student notices that the sound the car makes gets louder and louder as

the car approaches. The student suggests that the car sounds louder as it approaches because of the Doppler effect that he learned about in science class this week. How would you respond to the above statement made by the student? A) The student has stated a valid conclusion for his observation. B) The student has drawn a poor conclusion because the car does not get louder. C) The student has drawn a poor conclusion because the Doppler effect is about frequency and not amplitude. D) The student has drawn a poor conclusion because the Doppler effect is about amplitude and not frequency.
Physics
2 answers:
Solnce55 [7]3 years ago
8 0

Answer:

C

Explanation:

It's on USATestPrep

bagirrra123 [75]3 years ago
7 0

Answer:

C

Explanation:

On USA

You might be interested in
Recall that impulse = momentum (FAt = Ap and that Ap is just mx v). How long (time) must a group of people pull with a force of
elixir [45]

The time taken for the group of people to pull the car, giving it a velocity of 1.5 m/s is 3.75 s

Momentum is simply defined as the product of mass and velocity i.e

Momentum = mass × velocity

To answer the question given, we'll begin by calculating the change in momentum. This can be obtained as follow:

Mass = 1500 Kg

Initial velocity (u) = 0 m/s

Final velocity (v) = 1.5 m/s

<h3>Change in momentum =? </h3>

Change in momentum = m(v – u)

Change in momentum = 1500 (1.5 – 0)

Change in momentum = 1500 × 1.5

<h3>Change in momentum = 2250 Kg•m/s</h3>

Finally, we shall determine the time

Change in momentum = 2250 Kg•m/s

Force (F) = 600 N

<h3>Time (t) =? </h3>

Impulse = Ft = change in momentum

FT = change in momentum

600 × t = 2250

Divide both side by 600

t = 2250 / 600

<h3>t = 3.75 s</h3>

Thus, the time required is 3.75 s

Learn more on momentum and impulse: brainly.com/question/14486244

6 0
2 years ago
An eagle that has a mass of 4.5 kg is spotted 5 m above a lake. It flies up to its nest in a tree at a height of 25 m. How much
krek1111 [17]
The eagle gained 882 J of gravitational potential energy.
8 0
3 years ago
Read 2 more answers
What does the dashed line represent in this diagram?
lys-0071 [83]
Motor branch circuit
8 0
3 years ago
Which sequence shpes the steps of the proces of science in an order in which they might occur?
ivanzaharov [21]

The steps of the process of science in an order in which they might occur

exploration >> hypothesis >> prediction >> experiment.

The correct option is D.

<h3>Explanation:</h3>
  • A series of sequential steps are included in the scientific method, which is how knowledge in the scientific field is acquired.
  • When a question arises from observing the natural world, a hypothesis is a predetermined explanation of the question.
  • Experimental and/or observational procedures must be used to test a hypothesis and determine whether it is true or false.
<h3>What are some fundamental scientific procedures?</h3>

When scientists conduct research and study, they use specific science process skills. The thinking processes that scientists, teachers, and students use when conducting science include observing, categorizing, communicating, measuring, inferring, and predicting.

To know more about  process of science visit:

brainly.com/question/3987688

#SPJ4

I understand that the question you are looking for is:

Which sequence shows the steps of the process of science in an order in which they might occur?

A. exploration, question, opinion, conclusion, hypothesis

B. question, observation, experiment, analysis, prediction

C. experiment, conclusion, exploration, application

D. exploration, hypothesis, prediction, experiment

6 0
2 years ago
Dogs are able to hear much higher frequencies than humans are capable of detecting. For this reason, dog whistles that are inaud
stellarik [79]
Wavelength = 1/frequency thus wavelength =1/30000
4 0
3 years ago
Other questions:
  • What kind of engine do most cars use today
    7·2 answers
  • A balloon filled with helium gas has an average density of rhob = 0.27 kg/m3. The density of the air is about rhoa = 1.23 kg/m3.
    15·1 answer
  • A weight watcher who normally weighs 400 N stands on top of a very tall ladder so she is one Earth radius above the Earth's surf
    11·1 answer
  • What is the meaning of powee​
    14·1 answer
  • The probability that a battery will last 10 hr or more is 0.8, and the probability that it will last 15 hr or more is 0.11. Give
    15·1 answer
  • Mt. Everest is 20,028 feet high. How many miles is this? ( there are 5,280 feet in a mile)
    15·2 answers
  • 50 POINTS/BRAINLIEST TO CORRECT!
    11·1 answer
  • Density of water is 1000kg/m3. Find out the amount of mass of 5m3 water​
    15·1 answer
  • Someone answer this question please
    6·1 answer
  • How high will a 2 kg block be launched from a 100,000 N/m spring that was compressed by 0.01 m
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!