Answer:Zero
Explanation:
Given 
mass of ball 
If the ball is thrown upward then at maximum point velocity of ball is zero because ball is no longer able to move upward
Momentum(P) of a particle is given by 



Therefore at the highest point momentum is zero .
 
        
             
        
        
        
Same answer as the first one above
        
             
        
        
        
<span> Weight = mass x acceleration 
Earths acceleration is 9.8 m/s*2 
1 kg = 2.2 lbs, so 2.0 lbs x 1 kg/2.2 lbs = 0.91 kg 
The bag would have a weight of 9.8 x 0.91 = 8.9 N 
1. 8.9 x 1/6 = 1.5 N 
2. 8.9 x 2.64 = 23.5 N 
The mass of the bag at all three locations is 0.91 kg. Mass does not change, the different locations only change its weight. </span>
        
             
        
        
        
Answer:
please mark brainlist 
Explanation:
Initial speed   u=80 km/h=80×185=22.22 m/s
Final speed    v=60 km/h=60×185=16.67 m/s
Using   v=u+at
Or   16.67=22.22+α×5
⟹ a=−1.1 m/s2
 
        
             
        
        
        
Answer:

Explanation:
Given that:
p = magnitude of charge on a proton = 
k = Boltzmann constant = 
r = distance between the two carbon nuclei = 1.00 nm = 
Since a carbon nucleus contains 6 protons.
So, charge on a carbon nucleus is 
We know that the electric potential energy between two charges q and Q separated by a distance r is given by: 

So, the potential energy between the two nuclei of carbon is as below:

Hence, the energy stored between two nuclei of carbon is  .
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