Answer:
The current would stop
Explanation:
Electric currents are interesting because they carry little to no momentum. As soon as you remove a power source, the whole current halts.
 
        
             
        
        
        
A) <u>Weight = mass × acceleration (due to gravity)  </u>
= 60×9.8  
= 588 N  
<u>B) Potential energy = mass x gravity x change in height
</u>
1,000 = 60.0 x 9.8 x h
h =  1.7 m      
<u>C) Kinetic energyF = potential energyI
</u>
KEF = 1/2mv2  
PEI = mgh = 1,000 J
1/2mv2 = 1,000
1/2(60.0)v2 = 1,000  
v2 = 33.33
v = 5.77 m/s 
 
        
             
        
        
        
Answer:
Explanation:
Given
mass of children 

distance between two children 
suppose  small child is at a distance of x m from  pivot point
so torque of small child and heavier child must be equal



 
     
 
        
             
        
        
        
Answer:
Explanation:
For simple pendulum the formula is 

Where T is time period , l is length and g is acceleration due to gravity .

n is frequency 
Putting the values 


l = 1.584 m 
 
        
             
        
        
        
An impact which stops a moving object must do enough work to take away its kinetic energy, so extending the distance moved during the collision reduces the impact force.