2. Explain how fossil fuels are form

Answer:

(a) 774.529 kJ/kg

(b) Approximately 61.2%

(c) 96.816 kPa

(d) The maximum in the cycle temperature is 2655.3 K

Explanation:

(a)The temperature T₂ = T₁ × r^(k - 1)

∴ T₂ = 300 × 9^(1.4 - 1) = 772.467 K

P₂ = P₁×r×T₂/T₁ = 100 × 8 × 772.467/300 = 2059.912 kPa

W₁₂ = Cv × (T₁ - T₂) = 0.717*(300 - 772.467) ≈ -338.76 kJ/kg

The heat added = q₂₃ = 1350 kJ/kg = Cv × (T₃ - T₂) = 0.717*(T₃- 772.467)

1350/0.717 = T₃- 772.467

T₃ = 1350/0.717 + 772.467 = 2655.3 K

T₄ = T₃ × (1/r)^(k - 1) = 2655.3  × (1/9)^(1.4 - 1) = 1102.596 K

W₃₄ = Cv×(T₃ - T₄) = 0.717 × (2655.3 - 1102.596) ≈ 1113.289 kJ/kg

The net work = W₁₂ + W₃₄ = -338.76  + 1113.289 = 774.529 kJ/kg

(b) The thermal efficiency, [tex]\eta _{th}[/tex] = 1 - T₁/T₂ = (1 - 300/772.467) × 100 ≈ 61.2%

(c) The Mean Effective Pressure, MEP = (Net work)/Displacement Volume)

For unity clearance, volume, we have;

MEP = 774.529/(9 - 1) = 96.816 kPa

(d) The maximum temperature, occur at T₃ = 2655.3 K.

The answer is true. hope this helped

Answer:

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity

Answer:

True

Explanation:

Apparently roundabouts reduce injury crashes by about 75%

Answer:

Permanent Structures:

Motel

Mall

Refinery

Temporary Structures:

Kiosk

Marquee

Exhibition Stand

Explanation: Got a 100 percent on the test

Answer:

Ps4

Explanation:

Answer:

ps4

Explanation:

Answer:

Someone could chose the career of being a geologic scientist because they can discover new things about the world.And find new things about it that wearnt discovered previously.

Explanation:

New species

New cures

New lands

Answer:

The correct answer would include that there is a need for viable energy sources, but the techniques for mining them are not yet perfected.

Explanation:

Because of this, there is much room for improvement. This is a currently growing field with high incomes possible. There is a need to find better, safer ways to clean up spills. Less dangerous ways can be designed to make such tasks more efficient.

Answer:

D is Correct

Explanation:

D) Engineers will work to design a system that will cap off the pipeline and stop the flow of petroleum.

In the scenario given, an explosion has occurred on an offshore drilling rig, indicating that there has been a catastrophic failure in the system. The first priority in such a situation would be to contain and stop the flow of petroleum to prevent further damage to the environment and ensure safety.

Engineers would be called in to take immediate action and design a system that will cap off the pipeline and stop the flow of petroleum. This might involve designing and installing valves or other mechanical devices that can shut off the flow of petroleum.

Option A is incorrect because preventing methane from escaping and causing fires is not the immediate priority in this situation. Option B is also incorrect because the immediate priority is to stop the flow of petroleum, not to contain it. Option C is not a feasible solution as diverting methane gas would not address the immediate issue of stopping the flow of petroleum.

Engineers will work to design a rig that will not allow methane to escape and cause fires. Thus, the correct option is A.

Thus, An engineer solves issues using math, science, and technology. Engineering is all around us, enhancing the ways that we work, travel, communicate, maintain our health, and have fun.

Engineers transform scientific information into technology, which they subsequently transform into a practical solution or innovation.

All engineers experience a sense of pride and well-being after successfully completing a challenging assignment. Making, designing, and manufacturing valuable goods and services for other people is a career that will enrich your life.

Thus, The ideal option is A.

Learn more about Engineer, refer to the link:

https://brainly.com/question/19117846

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Answer:

It mean to equip more tools.

Explanation:

I hope this helps.

Answer:

When a manufacturing company "Retools", they simply are restocking in tools, organizing their workspace, and modifying or changing anything that needs to be changed.

Answer:

Construction Management is a Huge Job :

As a part of your construction manager training, you will need to know how to take control of the entire project.

Compliance is Required :

Every state has certain rules that need to be adhered to if the project is to be carried through properly.

Managing Employees Can Be Difficult

When you are a basic construction worker with the yellow hat that we mentioned, you are only responsible for yourself.

Explanation:

Answer:

True

Explanation:

I think:

Please tell me if it's right.