To solve this problem it is necessary to apply the concepts related to frequency, wavelength and speed of sound.
The frequency is defined as,
Where,
Speed of sound
Calculating the values of the frequencies with the two wavelengths we have
And,
Therefore the frequency of the beat is
Finally we can get the wavelenght through the same equation, then
We can conclude that the frequency of the beats these musicians hear when they play together is 3.22 Hz and the out of tune guitarists should tighten his guitar string to correctly tune it.
Answer:
Velocity ratio in pulley is defined as the ratio of distance travelled by load and effort in the same time interval.
The Atlantic and Pacific<span> Canal </span>
Yes i think
hope this helps
Answer:
4 hoop, disk, sphere
Explanation:
Because
We are given data that
Hoop, disk, sphere have Same mass and radius
So let
And Initial angular velocity, = 0
The Force on each be F
And Time = t
Also let
Radius of each = r
So let's find the inertia shall we!!
I1 = m r² /2
= 0.5 mr² the his is for dis
I2 = m r² for hoop
And
Moment of inertia of sphere wiil be
I3 = (2/5) mr²
= 0.4 mr²
So
ωf = ωi + α t
= 0 + ( τ / I ) t
= ( F r / I ) t
So we can see that
ωf is inversely proportional to moment of inertia.
And so we take the
Order of I ( least to greatest ) :
I3 (sphere) , I1 (disk) , I2 (hoop) , ,
Order of ωf: ( least to greatest)
That of omega xf is the reverse of inertial so
hoop, disk, sphere
Option - 4