Answer: The most likely identity of the substance is iron.
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q = Heat absorbed= Joules
 Joules
m= mass of substance = 11.9 g
c = specific heat capacity = ?
Initial temperature of the water =  = 25.0°C
 = 25.0°C
Final temperature of the water =  = 45.0°CChange in temperature ,
  = 45.0°CChange in temperature ,
Putting in the values, we get:


The specific heat of 0.45 is for iron and thus the substance is iron.
 
        
             
        
        
        
<span>The distance between two objects is increased by three times the oringinal distance.  Since they were already separated by one time the original distance,
the additional three times the oringinal distance now puts them four times the original distance apart.
Whether we're talking about the gravitational forces of attraction or 
the electrical forces of attraction, either one is inversely proportional 
to the square of the distance between the objects.  
So changing the distance to four times the original distance causes 
the forces to become 1/4</span>² as strong as they were originally.  
The forces become 1/16 of their original magnitude.<span>
 </span>
        
             
        
        
        
Velocidad-es una cantidad vectorial física; Tanto la magnitud como la dirección son necesarias para definirlo.
 
        
             
        
        
        
You can use the impulse momentum theorem and just subtract the two momenta. 
P1 - P2 = (16-1.2)(11.5e4)=1702000Ns
If you first worked out the force and integrated it over time the result is the same
        
                    
             
        
        
        
Explanation:
A particular kind of matter with uniform properties..