Moment of inertia of single particle rotating in circle is I1 = 1/2 (m*r^2)
The value of the moment of inertia when the person is on the edge of the merry-go-round is I2=1/3 (m*L^2)
Moment of Inertia refers to:
- the quantity expressed by the body resisting angular acceleration.
- It the sum of the product of the mass of every particle with its square of a distance from the axis of rotation.
The moment of inertia of single particle rotating in a circle I1 = 1/2 (m*r^2)
here We note that the,
In the formula, r being the distance from the point particle to the axis of rotation and m being the mass of disk.
The value of the moment of inertia when the person is on the edge of the merry-go-round is determined with parallel-axis theorem:
I(edge) = I (center of mass) + md^2
d be the distance from an axis through the object’s center of mass to a new axis.
I2(edge) = 1/3 (m*L^2)
learn more about moment of Inertia here:
<u>brainly.com/question/14226368</u>
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Answer: a) 11.76 m/s  b) 7.056 m
Explanation:
The described situation is as follows:
An object is dropped from the top of a tower and when measuring the time it takes to reach the ground that turns out to be 0.02 minutes.
This situation is related to free fall, this also means we have constant acceleration, hence the equations we will use are:
 (1)
 (1)  
 (2)
 (2)  
Where:  
 Is the final velocity of the object
 Is the final velocity of the object
 Is the initial velocity of the object (it was dropped)
 Is the initial velocity of the object (it was dropped)
 is the acceleration due gravity
 is the acceleration due gravity
 is the height of the tower
 is the height of the tower
 is the time it takes to the object to reach the ground
 is the time it takes to the object to reach the ground
b) Begining with (1):
 (3)
 (3)  
 (4)
 (4)  
 (5)  This is the final velocity of the object
 (5)  This is the final velocity of the object
a) Substituting (5) in (2):
 (6)
 (6)  
Clearing  :
:
 (7)
 (7)  
 (8)  This is the height of the tower
 (8)  This is the height of the tower
 
        
             
        
        
        
1) The wavelength of the radiation emitted by the human skin is

the frequency of the radiation is related to the wavelength by

where 

 is the speed of light. Plugging numbers into the formula, we find the frequency of the radiation:

2) The frequency of this radiation is 313 GHz, and its wavelength 

. If we look at the table of the electromagnetic spectrum
https://en.wikipedia.org/wiki/Electromagnetic_spectrum
We see that we are in the range of visible light (in particular, in the infrared range).
Therefore, the correct answer is <span>2. visible light .</span>
 
        
        
        
B) Planck. He is not a developer of an atomic model.