According to Newton's second law of motion, the acceleration of a body is directly proportional to the force acting on the body and inversely proportional to its mass. The formula for this law is 
F=ma
=4000kg * 2m/s 2 =8000N
 
        
             
        
        
        
Answer: 0.5N
Explanation: if the system is at equilibrium, sum of the torque will be equal to zero. 
But if they are not in equilibrium. 
U will find the difference in the two torque 
find the attached file for solution 
 
        
             
        
        
        
Answer:
1.1775 x 10^-3 m^3 /s
Explanation:
viscosity, η = 0.250 Ns/m^2 
radius, r = 5 mm = 5 x 10^-3 m 
length, l = 25 cm = 0.25 m 
Pressure, P = 300 kPa = 300000 Pa 
According to the Poisuellie's formula 
Volume flow per unit time is 


V = 1.1775 x 10^-3 m^3 /s 
Thus, the volume of oil flowing per second is 1.1775 x 10^-3 m^3 /s. 
 
        
             
        
        
        
The answer would be E7. Galaxies categorized as E0 look to
be nearly perfect, while those registered as E7 seem much extended than they
are widespread. It is worth noting, though, that a galaxy's look is connected
to how it lies on the sky when viewed from Earth. An E7 galaxy is very long and
thin or the flattest of them all.