The answer is b) light waves travel faster than sound waves. 
        
             
        
        
        
Answer : 1.12 grams
Yo find the mass of the sample, you take the increased mass and subtract the original mass. 
6.130 - 5.010 = 1.12
        
             
        
        
        
Ductility - a materials ability to stretch, ie if you pull it apart does it stretch to a wire. 
density - ratio of volume to mass
conductivity - materials ability to conduct a current. 
hopefully with these definitions you can figure out the answer.
        
                    
             
        
        
        
Answer:
The heat of vaporization is typically larger than the heat of fusion 
Next question answer:
The liquid water absorbs heat from the skin surface and is transferred to the air when the water evaporates.
Explanation: