The organism may become ill or die 
        
                    
             
        
        
        
Answer:
 10000N
Explanation:
Given parameters: 
Mass of the car  = 1000kg 
Acceleration = 3m/s² 
g  = 10m/s² 
Unknown: 
Weight of the car  = ? 
Solution: 
To solve this problem we must understand that weight is the vertical gravitational force that acts on a body. 
  Weight  = mass x acceleration due to gravity 
So; 
     Weight  = 1000 x 10  = 10000N
 
        
             
        
        
        
German physicist  Albert Betz  (in 1919) demonstrated  that the highest efficiency you can achieve with a wind turbine is around 59%
We would have to analyze the design of an specific turbine to determine its efficiency, however it is unlikely to achieve 50% , as todays turbines have an average efficiency in the 20-35%
The answer would be around 25%
        
                    
             
        
        
        
Answer:
Work done = 13605.44
Explanation:
Data provided in the question:
For elongation of 2.1 cm (0.021 m) work done by the spring is 3.0 J
The relation between Energy (U) and the elongation (s) is given as:
U =  ................(1)
   ................(1)
where, 
k is the spring constant
on substituting the valeus in the above equation, we get
3.0 = 
or
k = 13605.44 N/m
now
for the elongation x = 2.1 + 4.1 = 6.2 cm = 0.062 m
using the equation 1, we have
U = 
or
U = 26.149 J
Also, 
Work done = change in energy
or
W = 26.149 - 3.0 = 23.149 J