the answer is D cuz electricity is a conductive
 
        
             
        
        
        
The average power output is the ratio between the work done to compress the spring, W, and the time taken, t:

 (1)
The work done is equal to the elastic energy stored by the compressed spring:

where 

 is the spring constant and 

 is the compression of the spring. If we substitute the numbers, we find:

And now we can use eq.(1) to calculate the average power output:
 
        
             
        
        
        
Answer:
Explanation:
mass of displaced oil = 11 x  .9 
= 9.9 gm 
9.9 x 10⁻³ kg
weight of displaced oil = 9.9 x 9.81 x 10⁻³ N 
= .097 N . 
buoyant force by oil = .097 N 
weight of unknown metal = .1 x 9.8 
= .98 N .
weight of metal in oil = .98 - .097 
= .883 N . 
= 
 
        
             
        
        
        
“Weathering is the breaking down of rocks, soil and minerals as well as wood and artificial materials through contact with the Earth’s atmosphere, biota and waters. Weathering occurs in situ, roughly translated to: “with no movement”, and thus should not be confused with erosion, which involves the movement of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity and then being transported and deposited in other locations.”
Weathering processes are of three main types: mechanical, organic and chemical weathering.
        
             
        
        
        
Answer:
But there are ways to harness kinetic energy to either generate useful mechanical work or electricity. This is what many have tried to do to make use of energy that would be otherwise wasted. One way to harness kinetic energy that has popped up many times in recent years has to do with roads and speed bumps
Explanation: