☁️ Answer ☁️ 
The main disadvantage of convex mirrors is that they show a distorted picture of what is behind you. Distances are seen not as they are in reality and things appear closer than they really are. They are showing cars approximately twice as far away as they actually are.
Hope it helps.
Have a nice day hyung!~  ̄▽ ̄❤️
 
        
                    
             
        
        
        
Answer:
θ = 22.2
Explanation:
This is a diffraction exercise
         a sin θ = m λ
The extension of the third zero is requested (m = 3)
They indicate the wavelength  λ = 630 nm = 630 10⁻⁹ m and the width of the slit  a = 5 10⁻⁶ m
          sin  θ = m λ / a
          sin  θ = 3 630 10⁻⁹ / 5 10⁻⁶
          sin  θ = 3.78 10⁻¹ = 0.378
           θ = sin⁻¹  0.378
          
to better see the result let's find the angle in radians
           θ = 0.3876 rad
let's reduce to degrees
          θ = 0.3876 rad (180º /π rad)
          θ = 22.2º
 
        
             
        
        
        
Answer:
Normal stress = 66/62.84 = 1.05kips/in²
shearing stress  = T/2 = 0.952/2 = 0.476 kips/in²
Explanation:
A steel pipe of 12-in. outer diameter  d₂ =12in  d₁= 12 -4in = 8in
4 -in.-thick  
angle of 25° 
Axial force P = 66 kip axial force
determine the normal and shearing stresses 
Normal stress б = force/area = P/A
            = 66/ (П* (d₂²-d₁²)/4 
            =66/ (3.142* (12²-8²)/4
           = 66/62.84 = 1.05kips/in²
Tangential stress T = force* cos ∅/area = P/A
            = 66* cos 25/ (П* (d₂²-d₁²)/4 
            =59.82/ (3.142* (12²-8²)/4
           = 59.82/62.84 = 0.952kips/in²
shearing stress  = tangential stress /2
                            = T/2 = 0.952/2 = 0.476 kips/in²
 
        
             
        
        
        
Australia separated from other continents and species there evolved independently