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Steam exits a boiler and enters a turbine at 200. psia, 600.°F with a mass flow rate of 30.0 × 103 lbm/h. It exits the turbine at 1.00 psia and is condensed. The condensate then reenters the boiler as a saturated liquid at 90.0°F. The turbine drives an electrical generator that delivers a net 3000. kW of power. Determine
a. The Rankine cycle actual thermal efficiency of the entire system.
b. The isentropic efficiency of the combined turbine-generator unit.
What frequency is heard by a man on the ground facing the whistle-blowing train? What frequency is heard by a man on the other train?
Monochromatic light of wavelength 600 nm illuminates a single slit of width 6.5 um and a diffraction pattern is created on a wall. The central maximum has a width of 3.5m. Determine the separation between the slit and the wall.
The path of a charged particle moving parallel to a uniform magnetic field will be:
q1. a 28-rm cm-diameter vertical cylinder is sealed at the top by a frictionless 25 kg piston. the piston is 87 cm
A projectile is launched from the ground and sails across an open field. At launch, its total mechanical energy is 100 J. At its highest point, is its potential energy greater than, less than, or equal to 100 J? Explain, assuming that air resistance ..
On a winter day heat leaks out of a house at the rate of 2.5e4 kcal/h. At what rate does this process produce entropy
Determine the biologically equivalent dose received by a patient from a chest Xray. The X-ray beam is turned on for 0.1 s, the intensity is 1W/m2, What biological effect is this radiation likely to have
Suppose that a parallel-plate capacitor has circular plates with radius R = 40.0 mm and a plate separation of 4.0 mm. Suppose also that a sinusoidal potential difference with a maximum value of 340 V and a frequency of 120 Hz is applied across the..
A molecule of DNA (deoxyribonucleic acid) is 2.22 µm long. The ends of the molecule become singly ionized, Determine the effective spring constant of the molecule
A well-insulated piston- cylinder device contains 6kg of superheated R-134a initially at 0.10Mpa and -10 degrees Celsius is compressed to a final state at 0.50mpa and 80 degrees Celsius. find the work required for this compression process
Two blocks are in contact on a frictionless table. A horizontal force F is applied to m1. If m1 = 1.66 kg, m2 = 3.72 kg, and F = 6.25 N, find the magnitude of the force between the two blocks
A 550-Hz longitudinal wave in air has a speed of 343 m/s. How much time is required for the phase to change by 90° at a given point in space? (Given: lambda=0.624 m). At a particular instant, what is the phase difference (in degrees) between two poin..
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