Answer:
 121.11m/s²
Explanation:
Given parameters: 
Force   = 525N 
Mass = 4.5kg 
Unknown: 
Acceleration  = ? 
Solution: 
From Newton's second law of motion, we can find the solution to this problem. Using the expression below: 
        F  =  m x a 
F is the force 
m is the mass 
a is the acceleration 
       So'
               525  = 4.5 x acceleration 
             Acceleration = 121.11m/s²
 
        
             
        
        
        
Answer:
The  ideal molar volume is   
   
The  Z factor is  
The  real molar volume is 
Explanation:
From the question we are told that 
     The pressure is   
 
       The temperature is  
According to the ideal gas equation we have that 
           
=>      
Where   is the molar volume  and  R is the gas constant with value
 is the molar volume  and  R is the gas constant with value 
             
substituting values 
             
               
             
The  compressibility factor of the gas is mathematically represented  as 
             
substituting values         
           
           
Now the real molar volume is evaluated as 
          
substituting values 
              
              
 
        
             
        
        
        
the two process that occur in a cell are
oxidation: this is loss of electron by electrode. the metal electrode loaes electrons and get oxidized and forms ions
the ions get migrated to solution
Reduction: here the ions present in solution gains electron and get deposited on electrodes.
so gain of electrons is by ions
electrode gains electrons is where reduction occurs, and the half cell in which the electrode loses electrons is where oxidation occurs.
 
 
        
                    
             
        
        
        
Answer:
B. Equal to 7.
Explanation:
Hydrobromic acid is a strong acid that decreases pH and ammonia is a strong base that increases pH.
As the initial pH of water is 7,0 the addition of 35.0mL of 0.400M HBr will produce a pH less than 7,0. But, the same effect of decreasing pH is reverted for the addition of 35.0mL of 0.400M HNO3. 
That means the net effect of the two addition is to have a pH:
B. Equal to 7.
I hope it helps!
 
        
             
        
        
        
Answer:  D
Explanation:
This is the answer because everyone knows he discovered gravity and he conducted scientific experiments to prove them which he also used math for
Hope this helps