Answer:

Explanation:
We have given initial length of the steel guitar l = 1 m
Cross sectional area 
Young's modulus 
Force F = 1500 N
So stress 
We know that young's modulus 
So 

Now strain 


4 water has a low heat capacity and a high vaporization temperate and coasts have low temps
The ball rolled a distance of
d = 12m + 20m.
But the change of position is
x = + 12m - 20m