Answer:
P=11 kW
Explanation:
Given that
Number of poles= 8
I.E.C. 180L motor frame
From data book , for 8 poles motor at 50 Hz
Speed = 730 rpm
Power factor = 0.75
Efficiency at 100 % load= 89.3 %
Efficiency at 50 % load= 89.1 %
Output power = 11 kW
Therefore the rated output power of 8 poles motor will be 11 kW. Thus the answer will be 11 kW.
P=11 kW
Answer:
Option A
Explanation:
The size (volume) of the concrete pad is
cubic feet or 33.77 cubic yard
Cost of concrete per cubic yard dollars
Cost of concrete used in concrete pad is
dollar
The nearest answer to this question is option A
Answer:
P= 5.5 bar
Explanation:
Given that
L= 4000 m
d= 0.2 m
Friction factor(F) = 0.01
speed V= 2 m/s
Head = 5 m
Head loss due to friction
So the total head(H) = 5 + 40.77 + 10.3 =56.07
Where 10.3 m is the atmospheric head.
We know that
P=ρ g H
So total Pressure
P= 1000 x 9.81 x 56.07 Pa
P= 5.5 bar
Answer:
a) Number of atoms per unit cell for Ga = 4 atoms per unit cell
Number of atoms per unit cell for As = 4 atoms per unit cell
b) Volume density of Germanium in its unit cell = 4.35 × 10²² /cm³
Explanation:
GaAs has a number density of 4.42 x 10²² atoms/cm³ from literature.
Since GaAs is known to contain almost equal amounts of Ga and As.
Number density of Ga = Number density of As = 2.21 × 10²² atoms/cm³
Number density = Number of atoms in a unit cell/volume of the unit cell
Number of atoms in the unit cell = ?
Volume of the unit cell = (lattice parameter)³ = (5.65 × 10⁻⁸)³ = 1.804 × 10⁻²² cm³
Number of atoms per unit cell for Ga and As = number density × volume of unit cell = 2.21 × 10²² × 1.804 × 10⁻²² = 4 atoms/unit cell
b) Volume density = Number of atoms per unit cell/volume of unit cell
Germanium has 8 atoms per unit cell (from literature),
Volume of unit cell = (lattice parameter)³ = (5.65 × 10⁻⁸)³ = 1.804 × 10⁻²² cm³
Volume density = 8/(1.804 × 10⁻²²) = 4.35 × 10²² /cm³
Hope this helps!
Answer:
Explanation:
We can solve Von Karman momentum integral equation as seen below using following in the attached file