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valkas [14]
3 years ago
11

A piston-cylinder arrangement contains air modeled as an ideal gas with constant specific heat ration of k =1.4. The air undergo

es a power cycle consisting of four processes in series: Process 1 to 2: constant temperature expansion at 600 k from p_1 = 0.5 MPa to p_2 = 0.4 MPa. Process 2 to 3: Polytrophic expansion with n = k to p_3 = 0.3 MPa Process 3 to 4: constant pressure compression to V_4 =V_1 Process 4 to 1: constant volume heating. Sketch the cycle on a p-v diagram. Determine (a) the work and heat transfer of each process in kJ/kg and (b) the thermal efficiency.
Physics
1 answer:
loris [4]3 years ago
4 0

Answer:

Pish posh idk xD im busy but ill help in a second

Explanation:

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A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds
Inessa05 [86]

Answer:

A body travels 10 meters during the first 5 seconds of its travel,and a total of 30 meters over the first 10 seconds of its travel

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Explanation:

The answer is 4 m/s.

In the first 5 seconds, a body travelled 10 meters. In the first 10 seconds of the travel, the body travelled a total of 30 meters, which means that in the last 5 seconds, it travelled 20 meters (30m + 10m).

The relation of speed (v), distance (d), and time (t) can be expressed as:

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t = 5 s (time from t = 5 seconds to t = 10 seconds)

Thus:

v = 20m / 5s = 4 m/s

PLEASE GIVE BRAINIEST!! HOPE THIS HELPS

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