Answer:
The motor produces a high Torque when it begins to start.
Answer:
a) -505.229 kJ/Kg
b) -1.724 kJ/kg
Explanation:
T1 = 400°C
P1 = 3 MPa
P2 = 125 kPa
work output = 530 kJ/kg
surrounding temperature = 20°C = 293 k
<u>A) Calculate heat transfer from Turbine to surroundings </u>
Q = h2 + w - h1
h ( enthalpy )
h1 = 3231.229 kj/kg
enthalpy at P2
h2 = hg = 2676 kj/kg
back to equation 1
Q = 2676 + 50 - 3231.229 = -505.229 kJ/Kg ( i.e. heat is lost )
<u>b) Entropy generation </u>
entropy generation = Δs ( surrounding ) + Δs(system)
= - 505.229 / 293 + 0
= -1.724 kJ/kg
Answer:
2kg
Explanation:
Because the 2kg carries more weight, gravity will affect it more, meaning it will land on Earth's surface faster than the 1kg rock.
Answer:
A roller coaster does not have an engine to generate energy. This builds up a supply of potential energy that will be used to go down the hill as the train is pulled by gravity. Then all of that stored energy is released as kinetic energy which is what will get the train to go up the next hill.
Explanation:
I am assuming there is no correct answer rather preference so here:
I would choose to sell stock to private investors so I as the (assuming) CEO, could receive a lump sum profit and the company could still stay afloat keeping any and all employees employed. Additionally the brand name would not be impacted as severely as if you were to just sell out to the public.
