Answer:
The funda mental frequency of the original tube is 182Hz. 
Explanation:
See the attachment for the calculation steps.
In order to calculate the fundamental frequency of the original closed tube we need to find the length of the tube which is equal to the sum of the lengths of the two new tubes.
For closed tubes 
f = nv/4L (n = 1, 3, 5,...n)
f = nv/2L (n = 1, 2, 3,...n)
The details of calculation can be found below in the attachment. 
 
        
             
        
        
        
<h2>
The rank is : 
 .</h2>
We need to rank the objects according to the magnitude of their momentum.
We know momentum ,
{ here m is mass and v is velocity }
Momentum of object A , 
Momentum of object B , 
Momentum of object C  , 
Now, we can rank them in order of  their magnitude of momentum .
.
Hence, this is the required solution.
Learn More :
Momentum 
brainly.com/question/7957458
 
        
             
        
        
        
The government are involved in a child or young person’s upbringing in my country by providing the right amenities and ensure the justice system is fair.
<h3>What is Upbringing?</h3>
This is defined as the way an individual treated at a young age by older adults such as parents.
Providing amenities will ensure the upbringing of the child is easier and a fair justice system will help to control crime.
Read more about Upbringing here brainly.com/question/12397063
#SPJ1
 
        
             
        
        
        
W = mg,      Assuming g ≈ 9.8 m/s² on the earth surface.
735 N =  m* 9.8
735/9.8 =  m
75 = m
Mass , m = 75 kg.  B.
        
             
        
        
        
The central force acting on the electron as it revolves in a circular orbit is 
.
The given parameters;
- <em>speed of electron, v = 2.2 x 10⁶ m/s</em>
 - <em>radius of the circle, r = 4.63 x 10⁻¹¹ m</em>
 
<em />
The central force acting on the electron as it revolves in a circular orbit is calculated as follows;

where;
 is mass of electron = 9.11 x 10⁻³¹ kg

Thus, the central force acting on the electron as it revolves in a circular orbit is 
.
Learn more about centripetal force here:brainly.com/question/20905151