Answer:
Y component = 32.37
Explanation:
Given:
Angle of projection of the rocket is, 
Initial velocity of the rocket is, 
A vector at an angle  with the horizontal can be resolved into mutually perpendicular components; one along the horizontal direction and the other along the vertical direction.
 with the horizontal can be resolved into mutually perpendicular components; one along the horizontal direction and the other along the vertical direction.
If a vector 'A' makes angle  with the horizontal, then the horizontal and vertical components are given as:
 with the horizontal, then the horizontal and vertical components are given as:

Here, as the velocity is a vector quantity and makes an angle of 33.6 with the horizontal, its Y component is given as:

Plug in the given values and solve for  . This gives,
. This gives,

Therefore, the Y component of initial velocity is 32.37.
 
        
             
        
        
        
Diffraction patterns are due to interference<span>. Diffraction is a phenomena which occurs when a wave encounters an obstacle. It is the bending of light around the corners if the obstacle.</span>
        
                    
             
        
        
        
Answer:
1. False
2. True
3. True
Explanation:
1- False —> The relation between electric potential and electric field is given such that

Therefore, for a uniform E field, electric potential is linearly proportional to the distance. 
2- True —> The electric field lines always cross the equipotential lines perpendicularly. 
3- True —> In order to be a potential difference, one source of electric field is enough. The electric potential will decrease radially according to the following formula:

There is no test charge in the formula, only the source charge. Even when there is no test charge, the potential difference between points in space can exist. 
 
        
             
        
        
        
Answer:
0.44807175m
Explanation:
k = Spring constant =  (Assumed, as it is not given)
 (Assumed, as it is not given)
g = Acceleration due to gravity = 9.81 m/s²
Total mass is

The total weight will balance the spring force

The springs are compressed by 0.44807175m