Answer:
O2 has two more electrons compared to N2, with extra 2 electrons in the higher energy anti-bonding orbitals known as Diradical. These electrons have higher energy and are unpaired; therefore, O2 is more reactive
Explanation:
 
        
                    
             
        
        
        
Answer:
The acceleration of  is
 is  
Explanation:
From the question we are told that 
     The mass of first block is  
     The angle of inclination of first block is  
     The coefficient of kinetic friction of the first block is  
       The mass of the second block is  
      The angle of inclination of the second block is  
       The coefficient of kinetic friction of the second block is 
The acceleration of  are same
 are same 
The force acting on the mass  is mathematically represented as
 is mathematically represented as 
      
=> 
Where T is the tension on the rope 
The force acting on the mass  is mathematically represented as
 is mathematically represented as    
   
    
At equilibrium 
   
So 
  
making a the subject of the formula 
     
substituting values 
     => 
      
 
        
             
        
        
        
Answer:
μ = 0.375 
Explanation:
F = Applied force on the trash can = 75 N 
W = weight of the trash can = 200 N 
f = frictional force acting on trash can 
Since the trash can moves at constant speed, force equation for the motion of can is given as 
F - f = 0 
75 - f = 0 
f = 75 N 
μ = Coefficient of friction
frictional force is given as 
f = μ W
75 = μ (200)
μ = 0.375 
 
        
             
        
        
        
Answer:
A. carbon and boron
Explanation:
Carbon and boron is not an alloy. 
An allow forms between metals and metals using their huge electron could. 
Carbon is a non-metal, boron is a also a non-metal 
Two non-metals combining together does not make an alloy. 
Iron, nickel, aluminum  are all metals. 
 
        
                    
             
        
        
        
Answer:Ultraviolet radiation has shorter wavelengths and higher energy than infrared radiation.
Explanation: Electromagnetic radiation radiations which have both electrical and magnetic properties,they can be transmitted through space or through a medium.
It includes Gamma radiation, infra-red, visible light, Ultraviolet radiation etc they occur with different wavelength, the lower the wavelength the higher the Energy dissipated per photon. According to their order of decreasing wavelength and increased energy they are classified as follows.
RADIO WAVE, MICRO WAVE, INFRA-RED, VISIBLE LIGHT, ULTRAVIOLET RAY, X-RAY, GAMMA RAYS.