Answer:
Salt can dissolve in water making it an excellent soluble for water
 
        
                    
             
        
        
        
Answer: 
The specific heat capacity can be defined as the amount of heat required to raise the temperature of 1 unit of mass by 1 unit temperature. The specific heat capacity of water is 4.186 joule/gram °C which is higher than common substances. The land has lower specific heat capacity. Thus, the land gets hot quickly than water. 
This results in warming up air near the land which creates a difference in pressure across the coastal region. Sea breeze blows from sea towards landmass. Opposite happens at night, when water is still warm and land gets cooled down quickly. Then land breeze blows  from landmass towards the sea. This breeze maintains a moderate temperature and windy and humid weather in the coastal regions.
 
        
             
        
        
        
Answer:
force becomes one - ninth
Explanation:
According to Coulomb's law in electrostatics, two charges can exert a force of attraction or repulsion on each other which is directly proportional to the product of two charges and inversely proportional to the square of distance between them. 
Here both the charges remains same but the distance is variable. 
So, we can say that 
 .... (1)
    .... (1)
Where d be the distance between the tow charges 
As the distance between two charges increases by factor of three, let the new force be F'.
 .... (2)
   .... (2) 
Divide equation (2) by equation (1), we get


Thus, the force becomes one - ninth times the initial force.
 
        
             
        
        
        
Answer: The box was moving with a velocity of 0.256m/s when it hit the spring
Explanation: Please see the attachments below