Answer:
C.) A generator transforms mechanical energy into electrical energy with the help of static electricuty
Example:
 they convert mechanical or chemical energy into electrical energy. They do this by capturing the power of motion and turning it into electrical energy by forcing electrons from the external source through an electrical circuit.
(Hope this helps) sorry if it's wrong 
 
        
             
        
        
        
<h3>
Answer:</h3>
5.71 × 10² nm 
<h3>
Explanation:</h3>
The product of wavelength and frequency of a wave gives the speed of the wave.
Therefore;
Velocity of wave = Wavelength × Frequency 
c = f ×λ
In our case;
Frequency = 5.25 × 10^14 Hz 
Speed of light = 2.998 × 10^8m/s 
But;
λ = c ÷ f
   = 2.998 × 10^8m/s ÷  5.25 × 10^14 Hz 
   = 5.71 × 10^-7 m
But; 1 M = 10^9 nm 
Therefore; 
wavelength = 5.71 × 10^-7 × 10^9
                    = 5.71 × 10² nm 
The wavelength of light wave 5.71 × 10² nm 
 
        
             
        
        
        
K + S = K2S
Potassium reacts with sulfur to produce potassium sulfide
 
        
             
        
        
        
A simple chemical reaction with a single substrate shows a linear relationship between the rate of formation of product and the concentration of substrate, as shown below: ... The relationship between rate of reaction and concentration of substrate depends on the affinity of the enzyme for its substrate.