Answer:
The cost of increased rates of accidents/injuries due to road accidents associated with cycling.
Explanation:
Opportunity cost is referred to as an alternative cost which is the value of the other choose left out while settling for a better alternative. External cost will be the cost a society has to bear as a result of a private cost. A successful biking company in a community can led to increased rates of accidents due to road accidents associated with cycling. In addition, the society will have to bear the costs of the threats presented by dangerous car drivers who posse more danger to cyclists as compared to trucks/car drivers.
The option that is an exception about the properties of magnesium is the option;
<u>Is typically made from </u><u>stampings</u>
The reason why the option is an exception is given as follows:
- Magnesium is a nonferrous metal as it is usually combined with manganese, zinc and aluminum.
- Within the group of structural metals, magnesium is the lightest, having a high strength-to-weight ratio.
- Magnesium posses good dampening characteristics, and is capable of reducing vibration of mechanical parts.
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<em>However</em>
- Magnesium parts used for vehicle construction are die cast, and not made from stampings because magnesium is more difficult to stamp compared to aluminum.
Therefore, the correct option for the statement that is an exception from the true statements about magnesium is magnesium; <u>is typically made from stampings</u>
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Answer:
Rated power = 1345.66 W/m²
Mechanical power developed = 3169035.1875 W
Explanation:
Wind speed, V = 13 m/s
Coefficient of performance of turbine, 
= 0.3
Rotor diameter, d = 100 m
or
Radius = 50 m
Air density, ρ = 1.225 kg/m³
Now,
Rated power = 
or
Rated power = 
or
Rated power = 1345.66 W/m²
b) Mechanical power developed = 
Here, A is the area of the rotor
or
A = π × 50²
thus,
Mechanical power developed = 
or
Mechanical power developed = 3169035.1875 W
Answer:
248.756 mV
49.7265 µA
Explanation:
The Thevenin equivalent source at one terminal of the bridge is ...
voltage: (100 V)(1000/(1000 +1000) = 50 V
impedance: 1000 || 1000 = (1000)(1000)/(1000 +1000) = 500 Ω
The Thevenin equivalent source at the other terminal of the bridge is ...
voltage = (100 V)(1010/(1000 +1010) = 100(101/201) ≈ 50 50/201 V
impedance: 1000 || 1010 = (1000)(1010)/(1000 +1010) = 502 98/201 Ω
__
The open-circuit voltage is the difference between these terminal voltages:
(50 50/201) -(50) = 50/201 V ≈ 0.248756 V . . . . open-circuit voltage
__
The current that would flow is given by the open-circuit voltage divided by the sum of the source resistance and the load resistance:
(50/201 V)/(500 +502 98/201 +4000) = 1/20110 A ≈ 49.7265 µA
Answer:
All 4 could be justified.
Explanation:
They all represent ultimate improvement.
