Answer:
Hey mate, here is your answer answer. Hope it helps you 
Explanation:
1. If a worker has come into contact with electricity the worker may not be able to remove themselves from the electrical source. The human body is a good conductor of electricity. If you touch a person while they are in contact with the electrical source, the electricity will flow through your body causing electrical shock. Firstly attempt to turn off the source of the electricity (disconnect). If the electrical source can not readily and safely be turned off, use a non-conducting object, such as a fibreglass object or a wooden pole, to remove the person from the electrical source.
2. C- Electrical energy.The term electrical activity means that the food itself has the power to generate electric energy that persists some period of time. This work presents a purely renewable energy as energy comes. the zinc reacts with food tissue.
 
        
                    
             
        
        
        
Answer:
a) 
 
b) 
   
Explanation:
a)
The width of the central bright in this diffraction pattern is given by:
 when m is a natural number.
 when m is a natural number.
here:
- m is 1 (to find the central bright fringe)                 
- D is the distance from the slit to the screen 
- a is the slit wide 
- λ is the wavelength
So we have:
 
 
 
 
b)
Now, if we do m=2 we can find the distance to the second minima.
 
 

Now we need to subtract these distance, to get the width of the first bright fringe :
 
    
I hope it heps you!
      
 
        
             
        
        
        
14 because the horses name is friday and sprite cranberry is coming out with a new jersey
        
             
        
        
        
Answer:
4. total energy
Explanation:
According to Bernoulli's principle at any two points along a streamline flow The total energy that is sum of pressure energy , Kinetic energy  and potential energy of the liquid all taken in per unit volume remains constant. Therefore, 
for ideal fluid flows through a pipe of variable cross section without any friction. The fluid completely fills the pipe. At any given point in the pipe, the fluid has a constant Total Energy.