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
IgorC [24]
3 years ago
8

1. A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note? 2. A note has a wavelengt

h of 0.52028 m. If the speed of sound is 343.00 m/s, what pitch is this note? please no funny answers
Physics
2 answers:
AVprozaik [17]3 years ago
5 0

Answer:

1.) 440 Hz

2.) 659.3 Hz

Explanation:

1.) Given parameters are:

wavelength = 0.77955 m.

speed of sound = 343.00 m/s

Frequency = speed/ wavelength

Substitute speed and wavelength into the formula

Frequency = 343/ 0.77955

Frequency = 439.99

Frequency = 440 Hz approximately

2.) The parameters given are:

wavelength = 0.52028 m.

speed of sound = 343.00 m/s

Using the same formula

Frequency = speed/wavelength

Substitute all the parameters into the formula

Frequency = 343 / 0.52028

Frequency = 659.3 Hz approximately

The pitch of a note depends on the frequency of the sound waves.

The pitch of a sound increases as the frequency of the sound waves increases.

marysya [2.9K]3 years ago
5 0

Answer:

1.) 440 Hz

2.) 659.3 Hz

Explanation:

1.) Given parameters are:

wavelength = 0.77955 m.

speed of sound = 343.00 m/s

Frequency = speed/ wavelength

Substitute speed and wavelength into the formula

Frequency = 343/ 0.77955

Frequency = 439.99

Frequency = 440 Hz approximately

2.) The parameters given are:

wavelength = 0.52028 m.

speed of sound = 343.00 m/s

Using the same formula

Frequency = speed/wavelength

Substitute all the parameters into the formula

Frequency = 343 / 0.52028

Frequency = 659.3 Hz approximately

The pitch of a note depends on the frequency of the sound waves.

The pitch of a sound increases as the frequency of the sound waves increases.

You might be interested in
How do protons ever fuse together in the presence of the electromagnetic force? There is another force involved here called the
zepelin [54]

Answer:

The nuclei are moving fast with respect to one another

Explanation:

Protons are found in the nucleus together with the neutrons while the electrons normally revolve round it.

However the protons appears fused in a way when electromagnetic force is applied by the nuclei moving at a very fast speed. This fast speed helps to keep the supposed neutrons fused together.

7 0
3 years ago
Select the correct answer from each drop-down menu. A device that uses electricity and magnetism to create motion is called a __
Fittoniya [83]
<h3><u>Answer;</u></h3>

1st drop; Motor

2nd drop; Electricity

A device that uses electricity and magnetism to create motion is called a <u>motor</u>. In a reverse process, a device that uses motion and magnesium can be used to create <u>electricity</u>.

<h3><u>Explanation</u>;</h3>
  • <em><u>Motors are device which use electricity and magnetism to create motion.</u></em> They pass alternating current through opposing pairs of magnets to create a rotating magnetic field which creates a magnetic field in the rotor of a motor, making it to spin around.
  • <em><u>Electric motors work in a reverse process by using motion and magnetism to generate electricity. </u></em>When a coil or loops of wire are exposed to a changing magnetic field, an electrical current arises or is induced.
5 0
3 years ago
Which question could be tested in a scientific manner?
andrey2020 [161]
The questions from this lot which could be tested in a scientific manner would be "what causes some people to be color-blind"
and
"what are the best shoes to wear when exercising"
Both of these questions can be tested in a scientific way through an experiment. 
5 0
3 years ago
A cd player uses a ___ to convert info to an electrical signal
Alex_Xolod [135]
C.) Laser. the light from the laser reflects off the shiny surface as the CD rotates
7 0
4 years ago
What will be the ME of a machine that produces a 240 N work with a 300
Elden [556K]

Answer:

Efficiency = 80%

Explanation:

Given the following data;

Work output = 240 N

Work Input = 300 N

To find the mechanical efficiency of a machine;

Efficiency = \frac {Out-put \; work}{In-put \; work} * 100

Substituting into the equation, we have;

Efficiency = \frac {240}{300} * 100

Efficiency = 0.8 * 100

Efficiency = 80%

Therefore, the mechanical efficiency of the machine is 80 percent.

3 0
3 years ago
Other questions:
  • Following a gunshot wound to his head, Jack became more uninhibited, irritable, and profane. It is likely that his personality c
    7·1 answer
  • The unit for atomic mass is <br> A. Gram<br> B. Amu <br> C. Pound <br> D. None of the above
    7·2 answers
  • The gravitational field on the surface of the earth is stronger than that on the surface of the moon. If a rock is transported f
    13·1 answer
  • A 25kg mass is suspended at the end of a horizontal, massless rope that extends from a wall on the left and from the end of a se
    5·2 answers
  • A large object las Less of an attraction on a smaller <br><br> True <br> False
    12·1 answer
  • Please helppppppppppp​
    5·1 answer
  • An object is moving east, and its velocity changes from 66 mvs to 26 mvs in 10 seconds. Which describes the
    8·1 answer
  • What is voltage current and resistence ?
    8·2 answers
  • A major league baseball has a mass of 0.145 kg.
    9·1 answer
  • Two astronauts of mass 100 kg are 2 m apart in outer space. What is the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!