Answer: I would love to learn this
Explanation:
Answer:
We know that all petrol engines are works on Otto cycle.Otto cycle have four process out of four two are constant volume process and others two are isentropic processes.
There are lots of limitations for practical Otto cycle these are as follows
1.In practical cycle heat can not add at constant volume.
2.In practical cycle there is a gap between combustion of two set of fuel.
3.Lots of heat is dissipated by cylinders.
4.Valve opening and closing is not a sudden process it requires some time.
5.There is a limitations of cylinder material ,it means that temperature of cycle can not rise after a specified limit of material.
Due to these above limitations practical cycles have low efficiency as compare to ideal cycle.
A staircase what makes it a lever is another objects used to displace the force better
Answer:
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Explanation:
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Answer:
The answer is 2217.32m³
Explanation:
Given that:
V₂ = (15 + 5/2) * 3 * 100 = 3000 m³
r₁ = 21.7kN/m3
w (water) = 11.4%.
e₂ (void ratio) = 0.47
V₁ = ?
Now,
rd₁ = r₁/1 + w₁ = 21.7/1 +(11.4/100)
= 19.47 kN/m3
Thus,
rd₂ = r₁/1 + e₂ = 21.7/1+ 0.47 = 14.76 kN/m3
Then,
V₁/V₂ = rd₁/ rd₂
V₁ = 3000 * 14.76/19.97
V₁ = 2217.32m³
Therefore, volume that should be excavated from the borrow pit is 2217.32m³
