Technician A says ASE certification is mandatory in all 50 states before performing an automotive repair for pay. Technician B s
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Answer:
6 m²
Explanation:
application of fluid pressure according to Pascal's principle for the two pistons is given as:
Where P₁ is the pressure at the input and P₂ is the pressure at the output.
But P₁ = F₁ / A₁ and P₂ = F₂ / A₂
Where F₁ and F₂ are the forces applied at the input and output respectively and A₁ and A₂ are the area of the input pipe and output pipe respectively
Since,
But A₁ = 0.2 m², F₁ = 250 N, F₂ = 7500 N. Substituting values to get:
Therefore, the area of the pipe below the load is 6 m²
Answer:
Explanation:
Hello,
In this problem, the piston-cylinder assembly make us state the energy balance as:
Thus, we must now compute in terms of Cv as follows:
Now, since heat is given off, its sign is negative, thus, the work is computed as:
This work means that work was done over the system in order to allow the compression.
The suppositions were:
- The change in the internal energy is a function of the temperature.
- Air is an ideal gas.
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