The efficiency of the turbine is 50%.
The given parameters:
- <em>Kinetic energy of the wind, E = 3000 J</em>
- <em>Output electrical energy, E(out) = 750 J</em>
- <em>Energy lost to heat, E(lost) = 750 J</em>
- <em>Kinetic energy of the turbine, E(in) = ?</em>
The kinetic energy of the turbine which is the input energy is calculated as follows;
E(in) = 3000 - (750 + 750)
E(in) = 1500 J
The efficiency of the turbine is calculated as follows;
Thus, the efficiency of the turbine is 50%.
Learn more about efficiency of turbine here: brainly.com/question/2009210
Regions in the milky way where density waves have caused gas clouds to crash into each other are called clumps.Clumps are molecular clouds (interstellar clouds) with higher density,where lots of dust and gs cores resides. These clouds are the beginning of stars.
Answer:
K_b = 78 J
Explanation:
For this exercise we can use the conservation of energy relations
starting point. Lowest of the trajectory
Em₀ = K = ½ mv²
final point. When it is at tea = 50º
Em_f = K + U
Em_f = ½ m v_b² + m g h
where h is the height from the lowest point
h = L - L cos 50
Em_f = ½ m v_b² + mg L (1 - cos50)
energy be conserve
Em₀ = Em_f
½ mv² = ½ m v_b² + mg L (1 - cos50)
K_b = ½ m v_b² + mg L (1 - cos50)
let's calculate
K_b = ½ 2.0 6.0² + 2.0 9.8 6.0 (1 - cos50)
K_b = 36 +42.0
K_b = 78 J
Answer:
45.8
Explanation:
becuse 9.8+36=45.8 simple
