Answer:
Friction is a force that acts in a direction opposite to the motion of the moving object. 
Friction will cause a moving object to slow down and finally stop.
 
        
             
        
        
        
Answer:
The final speed of puck 1 is 0.739 m/s towards west  and puck 2 is 2.02 m/s towards east . 
Explanation:
Let us consider east as positive direction and west as negative direction .
Given 
mass of puck 1 , 
mass of puck 2 , 
initial speed of puck 1 , 
initial speed of puck 2 , 
Final speed of puck 1 and puck 2 be  respectively
  respectively
Apply conservation of linear momentum 

=>
=> -----(A)
 -----(A)
Since collision is perfectly elastic , coefficient restitution e=1

=> ------(B)
 ------(B)
From equation (A) and (B)

and 
Thus the final speed of puck 1 is 0.739 m/s towards west  and puck 2 is 2.02 m/s towards east . 
        
 
        
             
        
        
        
Answer:
a) 588,000 N
b) 294000 N
Explanation:
Given that
Density of water = 1000kg/m3
(g) = 9.8m/s2
volume is given as (V)= 5m*4m*3m
a) force will be equal to weight of water

b) at either end




 [A = wh]
           [A = wh]

F = 294000 N
 
        
             
        
        
        
The statement that describes the magnetic field inside a bar magnet is as follows: it points from north to south.
<h3>What is a bar magnet?</h3>
A bar magnet is a permanent magnet of rectangular shape. 
A magnet generally possess a magnetic field, which is a condition in the space around a magnet which there is a detectable magnetic force and the presence of two magnetic poles. 
A bar magnet like every other magnet possesses a magnetic field that points from the north pole to the south pole.
Learn more about magnets at: brainly.com/question/13026686
#SPJ1
 
        
             
        
        
        
 
 
The idea behind capitalism is that the free market of products and ideas is owned and driven by private citizens. A capitalist society is a social order in which private property rights and the free market serve as the basis of trade, distribution of goods, and development.