Answer:
Explanation:
The sum of the pore along the plane is expressed according to Newton's law
Fn-Ff = ma
Fn is the moving force
Ff = nR = frictional force
m is the Mass
a is the acceleration
Substitute the given values
Fn - nR = ma
Fn - tan31°(mgcostheta) =3.9(9.8)
Fn - tan31(3.9(9.8)cos31) = 3.9(9.8)
Fn - tan31(38.22cos31)= 38.22
Fn - 32.76tan31 = 38.22
Fn-19.68 = 38.22
Fn = 38.22+19.68.
Fn = 57.90N
Hence Fn (moving force) of the inclined block is 57.90
 
        
             
        
        
        
Oxygenated blood that has oxygen in them while de-oxygenated blood has carbon dioxide. in which the oxygenated blood carries the oxygen throughout the body since that cells need oxygen to function. called "gas exchange." once the cells got their required oxygen. the carbon dioxide needs somewhere to go, thus having deoxygenated blood. and that carbon dioxide needs to get out of the body
        
                    
             
        
        
        
Answer:
True
Explanation:
Just as Isaac Newton says, "For every action, there is an equal and opposite reaction." 
 
        
             
        
        
        
Answer:
ans: 
 tenson(T) = 20 N
 acceleration (a) = 2.86 m/s
Explanation:
 T + mg = Mg
 T = Mg - mg 
 T = g( M - m )
 T = 10× ( 7-5 )
 T = 20 N
again; 
 T = 20 
Ma = 20 
a = 20 / 7
 = 2.86 m/s 
 
        
             
        
        
        
Answer:
They are equal
Explanation:
angle of incidence = angle of reflection