Yes you can make sunglasses from 3d glasses
        
                    
             
        
        
        
Answer:
F = 236063.6N
Explanation:
Please see attachment below. 
 
        
             
        
        
        
Answer:
The magnitude of the magnetic field B at the center of the loop is 5.0272 x 10⁻⁴ T.
Explanation:
Given;
Radius of circular loop, R = 3.00 cm = 0.03 m
Current in the loop, I = 12.0 A
Magnetic field at the center of circular loop is given as;
B = μ₀I / 2R
Where;
μ₀ is constant = 4π x 10⁻⁷ T.m/A
R is the radius of the circular loop
I is the current in the loop
Substitute the given values in the above equation and calculate the magnitude of the magnetic field;
B = (4π x 10⁻⁷ x 12)/ 0.03
B = 5.0272 x 10⁻⁴ T
Therefore, the magnitude of the magnetic field B at the center of the loop is 5.0272 x 10⁻⁴ T.
 
        
             
        
        
        
Inelastic.
If it was elastic, they'd bump right off each other. But since they've been locked, or stuck together, this is inelastic.
        
             
        
        
        
Answer:
W= 4.89 KJ
Explanation:
Lets take 
temperature of hot water T₁ = 100⁰C 
T₁ = 373 K
Temperature of cold ice T₂= 0⁰C
T₂ = 273 K
The latent heat of ice LH= 334 KJ
The heat rejected by the engine Q= m .LH
Q₂= 0.04 x 334 
Q₂= 13.36 KJ
Heat gain by engine = Q₁ 
For Carnot engine


Q₁  = 18.25 KJ
The work W= Q₁  - Q₂
W= 18.25 - 13.36 KJ
W= 4.89 KJ