Answer:
Explanation:
Given
mass of Pendulum m=4 kg
Length of cable= 7.90 m
Distance between roof and Floor=10 m
will Provide Torque
thus
where I=moment of inertia
=angular acceleration
here is small therefore \sin \theta \approx \theta
thus
And
Small angle refers to any angle where
i.e. any angle less than
Answer:
The frequency of the 4th harmonic of the string is 481.13 Hz.
Explanation:
When a stretch string fixed at both ends is set into vibration, it produces its lowest sound of possible note called the fundamental frequency. Under certain conditions on the string, higher frequencies called harmonics or overtones can be produced.
The frequency of the forth harmonic is the third overtone of the string and can be determined by:
f =
Given that; L = 48.0 cm = 0.48 m,
m = 0.3 g = 0.0003 Kg,
T = 4.0 N,
f =
f = 4.1667 × 115.4701
= 481.1252
f = 481.13 Hz
The frequency of the 4th harmonic of the string is 481.13 Hz.