It does not move because of the sun the sun has no energy.
        
             
        
        
        
Answer:
Minimum height of metal = 5 inches
Explanation:
Volume of the cylindrical metal = πR²H = 125π 
cancelling out π on both sides
R²H = 125
Hence it can be deduced that R² = 25 and H = 5
Hence minimum height of metal = 5 inches
 
        
             
        
        
        
The net force on a 0.50-cm-diameter eardrum is mathematically given as
F= 0.76969 N
<h3>What is the net force on a 0.50-cm-diameter eardrum?</h3>
Generally, the equation for Pressure is  mathematically given as
P = ρgh 
Therefore
P= 1000*9.8*4 
P= 39200 Pa
Where
A= pi*(0.005/2)^2
Generally, the equation for Net force is  mathematically given as
F = PA 
F= 39200 *( pi*(0.005/2)^2) 
F= 0.76969 N
In conclusion, The net force is
F= 0.76969 N
Read more about Pressure 
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