Answer:
2 seconds
Explanation:
if a ball travels 1/2 meter per second, and there's 2 halfs in a whole, 1/2 meter per second x 2 halfs in a whole meter is 2 seconds to travel a meter
 
        
             
        
        
        
Answer:
4m/s
Explanation: 
May be different considering how long the pole is and how heavy the firefighter is.
 
        
             
        
        
        
Answer:
D. Newton's first law
Explanation:
Newton's first law of inertia says that an object will remain how it is, unless affected by an outside force. In this case, the plates want to remain stationary(not moving). Therefore, if you pull the table cloth fast enough, the force of friction produced will be small enough so that the Inertia of the plates will overcome the force of friction. 
 
        
             
        
        
        
Clock wise idk i think you should double check my answer
        
             
        
        
        
Answer:
The solution is neither acidic or basic,
PH < 7    acidic
PH = 7    neutral
PH > 7 basic
It is a measure of the (H+) hydronium concentration.