Hello I want to ask questions about physics
2 answers:
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Answer:
The phase difference is
Explanation:
From the question we are told that
The distance between the loudspeakers is
The distance of the listener from the wall
The frequency of the loudspeakers is
The velocity of sound is
The path difference of the sound wave that is getting to the listener is mathematically represented as
Substituting values
The phase difference is mathematically represented as
=
Where is the wavelength which is mathematically represented as
substituting value
Substituting value into the equation for phase difference
=
Answer:
The velocity is 19.39 m/s
Solution:
As per the question:
Mass, m = 75 kg
Radius, R = 19.2 m
Now,
When the mass is at the top position in the loop, then the necessary centrifugal force is to keep the mass on the path is provided by the gravitational force acting downwards.
where
v = velocity
g = acceleration due to gravity