The graphs display velocity data. Velocity is on the y-axis (m/s), while time is on the x-axis (s). Based on the graphs,
1 answer:
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Answer:
1) 341 Hz
Explanation:
When a string vibrates, it can vibrate with different frequencies, corresponding to different modes of oscillations.
The fundamental frequency is the lowest possible frequency at which the string can vibrate: this occurs when the string oscillate in one segment only.
If the string oscillates in n segments, we say that it is the n-th mode of vibration, or n-th harmonic.
The frequency of the n-th harmonic is given by
where
n is the number of the harmonic
is the fundamental frequency
Here we have:
is the frequency of the 3rd harmonic
So the fundamental frequency is
And so, the frequency of the 2nd harmonic is:
Answer:
boat will move by 0.46 m
Explanation:
Here as we know that the two persons are sitting on the boat at rest
And here the boat along with all persons are at rest
There is no other force on this system
So here the center of mass of the system will remains at rest always
so the displacement of the center of the mass will be zero
now we can say that boat moves a distance "x" opposite to the motion of 90 kg person
so we will have