Answer:
4.5kg/min
Explanation:
Given parameters

if we take
The mass flow rate of the second stream = 
The mass flow rate of mixed exit stream = 
Now from mass conservation


The temperature of the mixed exit stream given as

Therefore the mass flow rate of second stream will be 4.5 kg/min.
Answer:
False ( B )
Explanation:
considering that the wind turbine is a horizontal axis turbine
Power generated/extracted by the turbine can be calculated as
P = n * 1/2 *<em> p</em> *Av^3
where: n = turbine efficiency
<em>p = air density </em>
<em> </em>A = πd^2 / 4
v = speed
From the above equation it can seen that increasing the Blade radius by 10% will increase the Blade Area which will in turn increase the value of the power extracted by the wind turbine
Answer:
Use a story structure,
Explanation: Usually story engage the audience.
Answer: 0.306 kg/s
Explanation:
If we assume that the specific heat for all stream is constant, we can then say, the mass flow rate of cold water can be calculated by using the energy balance equation.
The energy balance equation basically states that, the heat gained is equal to the heat lost
m'1h1 + m'2h2 = m'3h3
m'1T1 + m'2T2 = (m'1 + m'2) T3
0.5 (60) + m'2(10) = (0.5 + m'2)41
30 + 10m'2 = 20.5 + 41m'2
30 - 20.5 = 41m'2 - 10m'2
9.5 = 31m'2
m'2 = 9.5 / 31
m'2 = 0.306 kg/s