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
liraira [26]
3 years ago
13

The Doppler effect refers to the frequency as perceived by _________. A. the source of the waves B. an observer of the waves who

is moving relative to the source C. an observer of the waves who is stationary relative to the source D. someone measuring halfway between the source and the observer, regardless of relative motion
Physics
1 answer:
Anon25 [30]3 years ago
6 0
The answer you are looking for is B, hope this helps.
You might be interested in
1. Give three examples, from the lab, where potential energy was converted to kinetic energy: ​
Lubov Fominskaja [6]

Answer:

A book on a table before it falls.

A yoyo before it is released.

A raised weight.

Explanation:

These are all examples of potential energy. So I hope you can find something that is comparable from the lab.

3 0
3 years ago
A series circuit is composed of two resistors:
WITCHER [35]
<h3>Answer:</h3>

1.3 Amps

<h3>Explanation:</h3>

<u>We are given;</u>

A circuit with resistors, R1 and R2

R1 = 7 Ω

R2 = 11 Ω

Voltage = 24 V

We are required to calculate the current in the circuit.

<h3>Step 1: We need to find the effective resistance.</h3>

When resistors are arranged in series, the effective resistance is calculated by;

Rt = R₁ + R₂ + R₃ + ..........Rₙ

Therefore;

Total resistance = 7 + 11

                          = 18 Ω

<h3>Step 2: Calculate the current in the circuit</h3>

From the ohm's law;

V = IR

Rearranging the formula;

I = V/R

Thus;

I = 24 V ÷ 18 Ω

 = 1.333 Amps

= 1.3 Amps

Thus, the current in the circuit is 1.3 Amps

7 0
3 years ago
Increasing the amount of current that flows through a wire ______ the strength of an electromagnet
Anestetic [448]

Electromagnet is in form of solenoid

and the magnetic field due to solenoid is given as

B = \mu_0 n i

here

i = current in the loop

so when we increase the current in electromagnet the magnetic field of the solenoid will increase

this will increase the strength of the electromagnet

so the answer would be

<em>INCREASE</em>

7 0
3 years ago
Read 2 more answers
What would happen if the pilot did not keep the airplane "trimmed"
Mademuasel [1]

Answer:

In explanation

Explanation:

Pilots who dont use trim often like the feeling of holding constant back pressure because The heavier control forces makes it more difficult to over-control the airplane inside the turn, so it gives the sense of a more stable flight

3 0
3 years ago
Which of the following is a correct formula of speed
satela [25.4K]

Answer:s= d/t

Explanation:

7 0
3 years ago
Other questions:
  • Which type of circuit has two or more branches for the current to flow through?
    12·1 answer
  • When an alarm clock rings, how will nearby air particles move in relation to the direction of the sound waves?. . A) Perpendicul
    13·2 answers
  • An old iron battery was discarded in this meadow. The iron in the battery is undergoing a ____ change as it rusts. The rusting i
    13·2 answers
  • A car has a momentum of 20,000 kg • m/s. What would the car’s momentum be if its velocity doubles?
    10·2 answers
  • The outer layer of bone _____.
    14·1 answer
  • Elabora una tabla, como la del ejemplo, con los resultados obtenidos en los test que desarrollaste en actividades anteriores. Lu
    9·1 answer
  • A stubborn, 120 kg mule sits down and refuses to move. To drag the mule to the barn, the exasperated farmer ties a rope around t
    11·1 answer
  • Ask For
    8·1 answer
  • Which of the following situations would cause the greatest decrease in the
    5·1 answer
  • A person is trying to ride a bike all the way round the inside of a pipe for a stunt in a film. The filmmaker wants to know what
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!