Answer:
option a 
Explanation:
a- All matter is composed of small particles.
 
        
                    
             
        
        
        
I think that the oceanic water particles mainly move in circles greater in the oceans surface because of how big the waves can be and how wind and air impact the motion. The water particles move more on the surface because of the other factors that impact it such as people, wind, air, etc...
        
             
        
        
        
Answer:
Explanation:
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<u>1. Formulae:</u>
Where:
- E = kinetic energy of the particle
- λ = de-Broglie wavelength
- m = mass of the particle
- v = speed of the particle
- h = Planck constant
<u><em>2. Reasoning</em></u>
An alha particle contains 2 neutrons and 2 protons, thus its mass number is 4.
A proton has mass number 1.
Thus, the relative masses of an alpha particle and a proton are:
        
For the kinetic energies you find:
           
             
Thus:
            
           
From de-Broglie equation, λ = h/(mv)   
        