Answer:
Hello There!!
Explanation:
Electrons get their energy by absorbing light.
hope this helps,have a great day!!
~Pinky~
 
        
             
        
        
        
Answer:
 
 
Explanation:
Resistivity is given by  where A is cross-sectional area, R is resistance, L is the length and
 where A is cross-sectional area, R is resistance, L is the length and  is the reistivity. Substituting 0.0625 for R, 3.14 × 10-6 for A and 3.5 m for L then the resistivity is equivalent to
 is the reistivity. Substituting 0.0625 for R, 3.14 × 10-6 for A and 3.5 m for L then the resistivity is equivalent to
  
 
 
        
             
        
        
        
Answer:
Refractive index of unknown liquid = 1.56
Explanation:
Using Snell's law as:
 
Where,  
 is the angle of incidence  ( 65.0° )
  is the angle of incidence  ( 65.0° )
 is the angle of refraction  ( 53.0° )
 is the angle of refraction  ( 53.0° )
 is the refractive index of the refraction medium  (unknown liquid, n=?)
 is the refractive index of the refraction medium  (unknown liquid, n=?)
 is the refractive index of the incidence medium (oil, n=1.38)
 is the refractive index of the incidence medium (oil, n=1.38)
Hence,  
 
Solving for  ,
, 
Refractive index of unknown liquid = 1.56
 
        
             
        
        
        
It shortens so that the tips reach faster
        
                    
             
        
        
        
Answer:
t = 3/8 seconds
Explanation:
h=-16t^2 - 10t+6
h= 0 when it hits the ground
0=-16t^2 - 10t+6
factor out a -2
0= -2(8t^2 +5t -3)
divide by -2
0 = (8t^2 +5t -3)
factor
0=(8t-3) (t+1)
using the zero product property
8t-3 = 0    t+1 =0
8t = 3         t= -1
t = 3/8     t= -1
t cannot be negative  ( no negative time)
t = 3/8 seconds