Answer:
T is less than or equal to 19 N
Explanation:
 
        
             
        
        
        
Answer:this is confusing and what subject is this
Explanation:
 
        
                    
             
        
        
        
Answer: waves transport energy, not water. As a wave crest passes, the water particles move in circular paths. The movement of the floating inner tube is simulacra to the movement of the water particles. Water particles rise as a wave crest approaches.
Explanation: 
 
        
                    
             
        
        
        
Answer:
2.10L
Explanation:
Given data
V1= 2.5L
T1= 275K
P1= 2.1atm
P2= 2.7 atm
T2= 298K
V2= ???
Let us apply the gas equation
P1V1/T1= P2V2/T2
substitute into the expression we have
2.1*2.5/275= 2.7*V2/298
5.25/275= 2.7*V2/298
Cross multiply
275*2.7V2= 298*5.25
742.5V2= 1564.5
V2= 1564.5/742.5
V2= 2.10L
Hence the final volume is 2.10L
 
        
             
        
        
        
Answer:
7.9m/s
Explanation:
We are given that 
Mass of wagon=40 kg

Tension=
Initial velocity of wagon=
Displacement=s=80 m
Net force applied  on wagon=
By using 

We know that 

Using the formula 

