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Andrej [43]
3 years ago
6

A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries steam at 1 MPa an

d 300 ºC. Now the valve is opened and steam is allowed to flow slowly into the tank until the pressure reaches 1 MPa, at which point the valve is closed. Determine the final temperature of the steam in the tank.
Physics
1 answer:
ss7ja [257]3 years ago
3 0

Answer:

Explanation:

The steam was earlier at 300 ° C. and pressure of 1 MPa. When the gas is allowed to expand against vacuum , work done by the gas is nil because there is no external pressure against which it has to work . Therefore there will not be any change in its internal energy. Since the tank is insulated therefore there is no possibility of external heat to increase its internal energy.

Hence the temperature of gas will remain unaffected.  It will remain stagnant at 300

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Answer:

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Explanation:

The total acceleration of a body, if we use the Pythagorean theorem is

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tangential acceleration

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angular and linear acceleration are related

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we substitute in the first equation

       a_total = √ [(α r)² + (w r² )²]

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        w = w₀ + α t

        w = 0 + 1.0 2

        w = 2.0rad / s

       

we substitute

        a_total = r √(1² + 2²) = r √5

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In order to finish the calculation we need the radius to point A, suppose that this point is at a distance of r = 1 m

         a_total = 2,236 m

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How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is
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To stop a car, first you require a certain reaction time to begin braking; then the car slows under the constant braking deceler
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b.)-4.13 m/s2 for 79.2 km/h and -3.63 m/s2 for 47.8 km/h

Explanation:

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t = (0.0586/79.2)*3600

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for velocity 47.8 km/h and distance 0.0242 km

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and

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