Answer:
hi here is your answer and this is a very important question. 
Explanation:
A lever is a rigid bar with three parts: the fixed point around which the bar pivots is the fulcrum: the effort arm (in-lever arm) is the part of the lever to which force is applied; the resistance arm (out-lever arm) is the part that bears the load to be moved.
 
        
             
        
        
        
3 hours 30 min i believe because 126/36 is 3.5 and 3.5 hours is 3 hours and 30 min. Brainliest pls
        
             
        
        
        
The answer is either C or D.
        
             
        
        
        
Answer:
An electrolytic cell converts electrical energy into chemical energy.
Explanation:
 
        
             
        
        
        
The work done by the machine is equal to the product between the force applied and the distance over which the force is applieds, so in this case:

And the power of the machine is equal to the ratio between the work done by the machine and the time taken:
