Answer:
55 
Explanation:
I hope this answer help u
 
        
                    
             
        
        
        
Use pythagorean theorem 

to find the opposite side, which is 7.3
so then you can just use inverse sinA=7.3/10 which equals 46.9 degrees
 
        
        
        
Answer:
The intensity will be 1/9 as much.
Explanation:
The intensity of the light or any source is inversely related to the square of the distance.

Now according to the question the distance is increased by three times than,

Therefore,

Therefore the intensity will become 1/9 times to the initial intensity.
 
        
             
        
        
        
Answer:
The relationship between acceleration and time relates to the velocity and how it changes throughout the movement of an object.