Answer:
Ae/A* = 1.115
Explanation:
Let the reservoir pressure be  
Let the exit  pressure be 
Ratio of reservoir pressure and exit pressure

   = 3.182
For the above value of pressure ratio
Obtain the area ratio from the isentropic flow table
Ae/A* = 1.115
The value of pressure ratio is Ae/A* = 1.115
 
        
             
        
        
        
Answer:
Explanation:
The lift is going down with acceleration 
Initial speed u = 0 
Final speed v = 6 m/s 
distance s = 15.25 m 
acceleration a = ? 
v² = u² + 2 a s 
6² = 0 + 2 x a x 15.25 
a = 1.18 m /s²
Elevator is going down with acceleration  .
mg - T = ma where T is tension in the cable .
722 x 9.8 - T = 722 x 1.18 
7075.6 - T = 851.96 
T = 6223.64 N . 
 
        
             
        
        
        
Answer:
A) coil A 
Explanation:
According to Faraday, Induced emf is given as;
E.M.F = ΔФ/t
ΔФ = BACosθ
where;
ΔФ  is change in magnetic flux
θ is the angle between the magnetic field, B, and the normal to the loop of area A
A is the area of the loop
B is the magnetic field
From the equation above, induced emf depends on the strength of the magnetic field.
Both coils have the same area and are oriented at right angles to the field.
Coil A has a magnetic field strength of 10-T which is greater than 1 T of coil B, thus, coil A will have a greater emf induced in it.
 
        
             
        
        
        
Max preassure = force / min area 
 = 3N / 0.1 x 0.05 
 = 600N/m(squared)
Copy off of the picture below itll help better, its what someone sent me when i asked this question