Answer:
length of the ladder is 13.47 feet
base of wall to latter distance 6.10 feet
angle between ladder and the wall is 26.95°
Explanation:
given data 
height h  = 12 feet 
angle 63°
to find out
length of the ladder ( L) and length of wall to ladder ( A) and angle between  ladder and the wall
solution
we consider here angle between base of wall and floor is right angle 
we apply here trigonometry rule that is 
sin63 = h/L
put here value 
L = 12 / sin63 
L = 13.47
so length of the ladder is 13.47 feet
and 
we can say 
tan 63 = h / A
put here value
A = 12 / tan63
A = 6.10
so base of wall to latter distance 6.10 feet
and 
we say here
tanθ = 6.10 / 12 
θ = 26.95°
so angle between ladder and the wall is 26.95°
 
        
             
        
        
        
Answer:
The transmitted intensity through all polarizers is 
Explanation:
  According to Malu's law the intensity of a polarized light having an initial intensity  is mathematically represented as
 is mathematically represented as
                
Now  considering the polarizer(The polarizing disk) the equation above becomes 
           
Where n is the number of polarizers
        Substituting   for the initial intensity 3 for the n and 20° for the angle of rotation
 for the initial intensity 3 for the n and 20° for the angle of rotation 
            
                
               
       
                          
 
        
             
        
        
        
This equation will be balanced if the x is a 2 because there are two sodiums on the reactants sides so there must be two sodiums on the products side
Hope this helps
        
                    
             
        
        
        
Answer:
#2) The spaceship's forward motion must be slowed down so the earth's gravitational pull on it will be stronger than the ship's forward motion.