Answer:
A
Step-by-step explanation: 20 x 3.28 is 65.6 round it up its 66
Answer:
Power generated = 4.315 kW
Step-by-step explanation:
Given,
- speed of wind when enters into the turbine, V = 12 m/s
- speed of wind when exits from the turbine, U = 9 m/s
- mass flow rate of the wind, m = 137 kg/s
According to the law of conservation of energy
Energy generated = change in kinetic energy
Since, the air is exiting at same elevation. So, we will consider only kinetic energy.
Energy generated in one second will be given by,


=4315.5 J
= 4.315 kJ
So, energy is generated in one second = 4.315 kJ
Power generated can be given by,

And the energy is generated is already in per second so power generated will be 4.315 kW.
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Answer: The value of the stove after 5 years is $1121.54
Step-by-step explanation:
Given: The price of stove A= $1150
The price depreciates about 0.5% each year.
In decimal the rate of depreciation r= 0.005
The value of the stove after x years is given by

The value of the stove after 5 years is given by

Hence, The value of the stove after 5 years is $1121.54.
Answer: 3.84
Step-by-step explanation:
cause it is use calculator