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Digiron [165]
3 years ago
8

Drivers killed in speed related accidents usually have a history of_______

Engineering
2 answers:
serg [7]3 years ago
4 0
It would be C. aggressive drivers
bazaltina [42]3 years ago
3 0
I would go with C but i am not 100 percent on that
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The use of seatbelts in a car has significantly reduced the number of crash fatalities. Which statement best explains how societ
satela [25.4K]

as the public need for preventing injuries and deaths from car crashes became known,laws were enacted to mandate the inclusion of seatbelts in almost all passengers vehicles

8 0
2 years ago
Consider a turbojet powered airplane flying at a standard altitude of 30,000ft at a velocity of 500 mph. The turbojet engine its
grandymaker [24]

Answer:

T  = 20.42 N

Explanation:

given data

standard altitude = 30,000 ft

velocity Ca = 500 mph = 0.4 m/s

inlet areas Aa = 7 ft² = 0.65 m²

exit areas Aj = 4.5 ft²  =  0.42 m²

velocity at exit Cj = 1600 ft/s = 487.68 m/s

pressure exit \rhoj = 640 lb/ft²   = 0.3 bar

solution

we get here thrust of the turbojet that is  express as

thrust of the turbojet T = Mg × Cj - Ma × Ca + ( \rhoj Aj - \rhoa Ag )   .............1

here Ma = Mg

Ma = \rhoa × Ca Aa = 0.042 kg/s

put value in equation 1 we get

T = 0.042 × (487.68 -0.14) + ( 0.3 ×  - 0.3 × 0.65 )  

T  = 20.42 N

5 0
3 years ago
Select the correct answer.
babunello [35]

Answer:

The information he needs next is;

B. Volume of paint needed per unit area

Explanation:

The operation Andy wants to perform = To apply paint on the walls of the house

The information Andy knows = The area of all walls in the house

The total volume of paint needed = The total area of the walls × The volume of paint needed for each unit area

Therefore, the information required is the volume of paint needed per unit area.

3 0
3 years ago
"Transportation is the way of expanding business activies" justify this statement with long answer​
Leokris [45]

Answer:

Transportation methods ensure deliveries to and from your facility flow smoothly and arrive at their designated destinations on time. Because of the importance of transportation to your business's success, it's vital to include this factor in your supply chain management strategy.

So,transportation is the way of expanding business activities.

4 0
3 years ago
In an aligned and continuous carbon fiber-reinforced nylon 6,6 composite, the fibers are to carry 97% of a load applied in the l
Juli2301 [7.4K]

Answer:

a) 0.26

b) 1077 MPa

Explanation:

a) The following equation can be used to determine the volume fraction:

\frac{F_f}{F_m} =\frac{E_fV_f}{E_m(1-V_f)}

\frac{0.97}{1-0.97} =\frac{260V_f}{2.8(1-V_f)}

32.3 = \frac{260V_f}{2.8-2.8V_f}

V_f = 0.26

b) Tensile strength can be found by using the following equation:

\sigma_{cl} = \sigma_m(1-V_f)+\sigma_fV_f = 50*(1-0.26)+4000*0.26 = 1077 MPa

5 0
4 years ago
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