Answer:
Power of a machine is defined as its rate of doing work. It is the rate of transfer of energy. The power of a machine is said to be one watt if it can work at the rate of one joule in one second.
Explanation:
Answer:
15300 N
Explanation:
= Density of air at inlet
= Mass flow rate = 60 kg/s
= Inlet velocity = 225 m/s
= Density of gas at outlet = 
= Inlet area
= Outlet area = 
Since mass flow rate is the same in the inlet and outlet we have

Thrust is given by

The thrust generated is 15300 N.
Answer:
0.028 kg per Seconds; 8.4
Explanation:
N-S, 4 x 100 = 400 m^2, concentration 5/400= 0.0125 kg/s
E-W 4 x 100 =400 m^2 , => 10/400 =0.025 kg/s
(0.0125^2 + 0.025^2)^(1/2) =0.028 kg/s
in 5 minutes = 5 x 60 x 0.028 =8.4