Answer:
71.4583 Hz
67.9064 N
Explanation:
L = Length of tube = 1.2 m
l = Length of wire = 0.35 m
m = Mass of wire = 9.5 g
v = Speed of sound in air = 343 m/s
The fundamental frequency of the tube (closed at one end) is given by

The fundamental frequency of the wire and tube is equal so he fundamental frequency of the wire is 71.4583 Hz
The linear density of the wire is

The fundamental frequency of the wire is given by

The tension in the wire is 67.9064 N
I think the answer should be the last one. Magnets attract magnets with unlike poles and repel magnets with like poles
<span>One
of three things the photon passes through unscathed, the photon gets
absorbed by the electron of an atom and stays put, or the photon gets
absorbed and a second generation photon is generated by that electron</span>
Answer:h=7.22 m
Explanation:
Given
mass of firefighter 
Frictional Force 
average speed at bottom 
Let h be the height of Pole
net force on Firefighter is

therefore net acceleration is

using 
here 



