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
telo118 [61]
3 years ago
5

The speed of sound is 330.0 m/s and the wave length of a particular sound wave is 33.0 meters. Calculate the frequency of the so

und wave.
A)11,000 Hz B)10.0 Hz C) 0.10 Hz D)9.1 x 10-5 Hz
Physics
2 answers:
Alekssandra [29.7K]3 years ago
6 0
V: velocity of wave
f: frequency 
L: wavelenght

<span>v = fL => f = v/L => f = (330)/(33) => L = 10Hz</span>
Nataly [62]3 years ago
6 0

Answer:

B). f = 10.0 Hz

Explanation:

As we know the relation between frequency, wavelength and speed is given as

v = f \lambda

here we know that

v = 330 m/s

\lambda = 33 m

now in order to find the frequency of the sound we can use above relation as

f = \frac{v}{\lambda}

plug in all values in it

f = \frac{330}{33}

f = 10 Hz

You might be interested in
An object is falling from a height of 7.5 meters. At what height will it’s velocity be 7 meters/second?
Nady [450]
One of the equations of gravity is this:
{v}^{2} = {u}^{2} + 2gh
Where v = final velocity which is 7m/s
u = initial velocity which is 0 for objects falling from a height
g = acceleration due to gravity and it is approximately 10m/s^2. It's a constant so pretty much remember this number. It's positive since the work being done is caused by gravity (in other words, it's falling down). It can also be negative if the work being down is against gravity (in other words, it's going up)
h = height of object

Substitute for the values and you should have something like this
{7}^{2} = {0}^{2} + 2 \times 10 \times h
49 = 0 + 20h
h = \frac{49}{20}
h = 2.5m
6 0
3 years ago
By what factor is the self-inductance of an air solenoid changed if its length and number of coil turns are both tripled
fredd [130]

Answer:

The new self inductance is 3 times of the initial self inductance.

Explanation:

The self inductance of a solenoid is given by :

L=\dfrac{\mu_oN^2 A}{L}

Where

N is number of turns per unit length

A is area of cross section

l is length of solenoid

If length and number of coil turns are both tripled,

l' = 3l and N' = 3N

New self inductance is given by :

L'=\dfrac{\mu_oN'^2 A}{L'}\\\\=\dfrac{\mu_o(3N)^2 A}{3L}\\\\=3\dfrac{\mu_oN^2 A}{L}\\\\=3L

So, the new self inductance is 3 times of the initial self inductance.

4 0
2 years ago
Scientists have discovered convection currents inside Earth. Explain how these convection currents move and what layer(s) they o
fgiga [73]

Answer:

I don't know what to do

Explanation:

So

7 0
3 years ago
Read 2 more answers
A flap of tissue that prevents blood from flowing back is a(n)________ .
ioda
A valve is a flap of tissue that prevents blood from flowing back
6 0
2 years ago
Is (2, 2) a solution of y &lt; 4x-6<br> Help
vesna_86 [32]

Answer:

B) No.

Explanation:

Okay,so,

this is equation is y=mx +b

mx represents the slope

and b represents the y-intercept

in order to figure this out you need to plot the y-intercept first

that makes its (0,-6) because the 6 is negative in the equation

4x is also equal to 4/1 since we dont know what x is

we have to do rise over run for this

you go up 4 spots on the y intercept from -6 because 4 is positive

then you go to the right 1 time because 1 is positive.

this leaves you at (1,-2)

so, (2,2) is NOT a solution

7 0
3 years ago
Other questions:
  • The cruise control of megan's truck is set at 65 miles per hour, but her actual speed may vary by as much as 5 miles per hour. W
    10·2 answers
  • What two things must you know to find the <br> momentum of an object? <br> :( anyone?
    13·2 answers
  • In an electron dot diagram, each dot represents a(an ____________________.
    6·1 answer
  • How can a comet become the source of meteoroids and meteors?
    8·2 answers
  • Explain Kepler's second law in detail with figures.
    5·1 answer
  • A swimmer standing near the edge of a lake notices a cork bobbing in the water. While watching for one minute, she notices the c
    10·1 answer
  • A LOT OF POINTS! In your own words, compare and contrast transverse and longitudinal waves. Be sure to include at least one simi
    14·1 answer
  • Please Hurry!! This is very simple!
    9·1 answer
  • Identify the energy transformation that occurs in the light bulb of a lamp:
    9·1 answer
  • When a wire with an electric current i is placed in a magnetic field of strength b it experiences a magnetic force f. What is th
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!