I think it is -3.99 x 102 j
        
             
        
        
        
Answer:
A) 12P
Explanation:
The power produced by a force is given by the equation

where
W is the work done by the force
T is the time in which the work is done
At the beginning in this problem, we have:
W = work done by the force
T = time taken
So the power produced is

Later, the force does six times more work, so the work done now is

And this work is done in half the time, so the new time is

Substituting into the equation of the power, we find the new power produced:

So, 12 times more power.
 
        
             
        
        
        
        
Answer:
The equation for speed is : distance divided by time.
Hoped I helped-
Sleepy~
 
        
             
        
        
        
Answer:
The frequency of the oscillations in terms of fo will be f2=fo/3
E xplanation:
T= 
   =1:3
=1:3
⇒f2=fo\3 
Here frequency f is inversely poportional to square root of mass m.
so the value of remainder of frequency f2 and fo is equal to 1:3.
⇒ =
 = 
⇒ = 1:3
 = 1:3
⇒f2=