True, the law of inertia effects both moving and non-moving objects.
        
                    
             
        
        
        
Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules. That's it.
        
             
        
        
        
Answer:

Explanation:
From the second law of Newton movement laws, we have:
 , and we know that a is the acceleration, which definition is:
, and we know that a is the acceleration, which definition is:
 , so:
, so:

The next step is separate variables and integrate (the limits are at this way because at t=0 the block was at rest (v=0):

 (This is the indefinite integral), the definite one is:
 (This is the indefinite integral), the definite one is:

 
        
             
        
        
        
Answer:
Explanation:
The answer is C. Both options are correct
 
        
             
        
        
        
The refractive index of water is 

. This means that the speed of the light in the water is:

The relationship between frequency f and wavelength 

 of a wave is given by:

where v is the speed of the wave in the medium. The frequency of the light does not change when it moves from one medium to the other one, so we can compute the ratio between the wavelength of the light in water 

 to that in air 

 as

where v is the speed of light in water and c is the speed of light in air. Re-arranging this formula and by using 

, we find

which is the wavelength of light in water.