Answer:
v = wavelength * frequency
frequency = 5200 m/s / .2 m = 26000 / sec
20,000 / sec is optimistic for the upper frequency of human hearing
So 26,000 is above the hearing range for human ears
 
        
             
        
        
        
When adding a solute to the solvent, the solution will then boil at a point much higher than the solvent itself. Therefore, it would take much longer for the solution to boil. Among the choices, the correct answer would be B. The water will boil at a higher temperature.
        
                    
             
        
        
        
when a glacier came through the Bronx approximately 240,000 years ago it blocked part of the original path of the Bronx river and subsequently reshaped and modified the path of the river over the past 200 years the rivers course has been altered dramatically by human impact and industry. 
have a great day ☺
 
        
             
        
        
        
Given parameters: 
Mass of the car = 1000kg 
Unknown: 
Height  = ? 
To find the heights for the different amount potential energy given, we need to understand what potential energy is. 
Potential energy is the energy at rest due to the position of a body. 
  It is mathematically expressed as: 
           P.E  = mgh 
m is the mass 
g is the acceleration due to gravity = 9.8m/s²
h is the height of the car
Now the unknown is h, height and we make it the subject of the expression to make for easy calculation. 
                h = 
<u>For 2.0 x 10³ J;</u>
                   h  =  = 0.204m
   = 0.204m 
<u>For 2.0 x 10⁵ J;</u>
                   h  =  = 20.4m
   = 20.4m 
<u>For 1.0kJ  = 1 x 10³J; </u>
                   h  =  = 0.102m
   = 0.102m
    
 
        
             
        
        
        
The car bounces off and moves in the opposite direction