Answer:
The right answer is:
(a) 63.83 kg
(b) 0.725 m/s
Explanation:
The given query seems to be incomplete. Below is the attachment of the full question is attached.
The given values are:
T = 3 sec
k = 280 N/m
(a)
The mass of the string will be:
⇒ 
or,
⇒ 
On substituting the values, we get
⇒     
⇒     
⇒     
(b)
The speed of the string will be:
⇒  
then,
⇒             
On substituting the values, we get
⇒                
⇒                
⇒                
⇒                
 
        
             
        
        
        
submarinismo is scuba diving but Bueco is dive
 
        
                    
             
        
        
        
==> Jot down notes before and after making each call, and avoid calling during business hours when people are busy.
==> Save all emails and bills, and follow up to make sure people did what they said they would do.
 
        
             
        
        
        
Answer:

Explanation:
sin^2 60° = ( \|3 / 2 ) ^2 = 3 / 4.