Rainbows are caused by the dispersion of light, which itself consists of a combination of refraction and reflection of light around little droplets of water.
Choice C
 
        
             
        
        
        
Answer:
4000J
Explanation:
Given parameters: 
Weight of the man  = 800N 
Height of ladder  = 5m 
Unknown: 
Gravitational potential energy gained  = ? 
Solution: 
The gravitational potential energy is due to the position of a body. 
  Gravitational potential energy = weight x height 
 Now insert the parameters; 
  Gravitational potential energy  = 800 x 5  = 4000J
 
        
             
        
        
        
Answer:
-.457 m/s^2 
Explanation:
Actual weight =   60 .3 (9.81) = 591.54 N
Accel of lift changes this to    60.3 ( 9.81 - L)     where L - accel of lift 
                                            60.3 ( 9.81 - L ) = 564 
                                                solve for L = .457 m/s^2  DOWNWARD
                                                         so L = - .457 m/s^2 
 
        
             
        
        
        
Explanation:
Formula to represent thrust is as follows.
              F = 
                 = 
or,           p = 
          
                   F = 
                      = 
                      = 201.67 N
Thus, we can conclude that the thrust is 201.67 N.