Answer:
= 287kW
Explanation:
Knowing the enthalpy data, we have to
So,
Here,
m=mass flow rate
h= Enthalpy of refrigerant at the compressor
Replacing
= 1.2 × 239.16
= 287kW
Mountain Ecosystems Assignment Answer each question below in complete sentences.1) Identify a predator from an Ethiopian Highlan
1 answer:
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Answer:
v = 6.195 m / s
Explanation:
For this exercise we can use the conservation of energy, for the system formed by the ball and the pulley
starting point. Higher before releasing the system
Em₀ = U = M g h
final point. When the ball has lowered h = 2
Em_f = K = ½ M v² + ½ I w²
the energy is preserved
Em₀ = Em_f
M g h = ½ M v² + ½ I w²
angular and linear velocity are related
v = w r
w = v / r
indicate that the moment of inertia is
I = ½ m r²
we substitute
M g h = ½ M v² + ½ (½ m r²) (v/r) ²
½ v² (M + m) = M g h
v² =
let's calculate
v =
v = 6.195 m / s