Answer:

Explanation:
Given that,
The compression in the spring, x = 0.0647 m
Speed of the object, v = 2.08 m/s
To find,
Angular frequency of the object.
Solution,
We know that the elation between the amplitude and the angular frequency in SHM is given by :

A is the amplitude
In case of spring the compression in the spring is equal to its amplitude



So, the angular frequency of the spring is 32.14 rad/s.
 
        
             
        
        
        
Answer:
Increase
Explanation:
The plane strain fracture toughness of a metal is expected to increase with rising temperature. 
 
        
             
        
        
        
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