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An ideal Brayton cycle uses air as a working fluid. The air enters the compressor at 101 kpa and 37 C. The pressure ratio of the compressor is 12:1, and the temperature of the air as it leaves the turbine is 497 C. The temperature and the pressure of the surroundings are 37 C and 100 kpa, respectively. Use the air-standard assumptions and determine the following quantities: (a) The work per unit mass required to operate the compressor; (b) The work per unit mass produced by the turbine; (c) The heat transfer per unit mass during the combustion process and during the exhaust process; (d) The irreversibility of the cycle on a unit-mass basis, assuming the temperature of the low- and high-temperature reservoirs ar 37 C and 1300 C, respectively; (e) The thermal efficiency of the cycle.
(i) Electric field lines come out of positive charge and go into the negative charge. (ii) Tangent to the field line at any point gives the direction of the field at that point.
the energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constant is this stored energy one forth its initial value
#how does multihance work in mra and how does it improve mri image quality?question..
What do you mean by Normal shift? How can you calculate total internal reflection? Mention an application of total internal reflection.
What is work function of a metal and What do you mean by Compton effect?
the value of 10 radian is?
Two forces have magnitudes of 11 newtons and 5 newtons. The magnitude of their sum could NOT be equal to which of the following values? a) 16 newtons b) 5 newtons b)
lumeniferous aether: A substance, that filled all the empty spaces among matter, which was utilized to describe what medium light was "waving" in. it now has been discredited,
(i) X-rays are electromagnetic waves with wavelength lie among 0.1Å - 100Å. (ii) X-rays is invisible. (iii) They always go in a straight line with speed of light. (iv) X
The drawing shows the electrical potential as a function of distance along the x-axis. Determine the magnitude of the electrical field in the (a) A to B, (b) B to C and (c)C to D.
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