Half life is 5700 years,that is 50%.
6.25% means 1/16 of the life is left.
T^1/16 =T^1/2*4.
5700 × 4 =22800 years
 
        
             
        
        
        
The answer is Data collected from many experiments could not be explained.
Explanation:
With pretty much every science theory, the theory can not change without valid experimentation by multiple professionals. 
 
        
                    
             
        
        
        
Answer:
ω = 0.571 rad/s
Explanation:
given data 
radius = 30 m 
solution 
we take here g = 9.8 m/s²
and g is express as 
g = r × ω²     ....................1 
put here value and we get 
9.8 = 30 × ω² 
solve it we get 
ω = 0.571 rad/s
 
        
             
        
        
        
Answer:
the maximum vertical height the person in the cart can reach is 18.42 m
Explanation:
Given;
mass of the person in cart, m₁ = 45 kg
mass of the cart, m₂ = 43 kg
acceleration due to gravity, g = 9.8 m/s²
final speed of the cart before it goes up the hill, v = 19 m/s
Apply the principle of conservation of energy;

Therefore, the maximum vertical height the person in the cart can reach is 18.42 m