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Steam enters a turbine with a velocity 120 m/s at 600°C and 6000 kPa. The steam leaves the turbine as saturated vapor at 200 kPa with a velocity of 180 m/s. Heat is transferred from the turbine to the surroundings in the amount of 30 kJ for every kilogram of steam flowing through the turbine. The mass flow rate of steam through the turbine is 20 kg/s (1 kJ/kg = 1000 m2/s2)A) Find the work done by the steam in the turbine in kW
B) Determine the flow area at the entrance to the turbine in m^2
A particle moves horizontally in uniform circular motion, over a horizontal xy plane. What are the coordinates of the center of the circular path
The same activity is measured for two different isotope samples. One sample contains 0.0450 kg of (atomic mass = 230.033 937 u, t1/2 = 20.8 days). What is the mass of the second sample
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. what is the area of the leaf in square meters
John starts at the origin and walks 3.0 km due east. If he then walks 30? north of east for 8.0 km, what is his distance from the origin (in km)
When light of wavelength 380 nm falls on a cesium surface,electrons are emitted that have a maximum kinetic energy of 1.13eV. Find the work function of cesium
A particle of mass m1 = 3.74kg is traveling in the positive x-direction with a velocity of 17.5m/s. What is the angle that the new trajectory makes with the x-axis
A small rigid object carries positive and negative 4.00 nC charges. It is oriented so that the positive charge has coordinates (-1.20 mm, 1.50 mm), find the electric dipole moment of the object
two masses m1=2.0kg and m2=3.5kg are connected by a thin string running over a massless pulley. what is the acceleration of the masses
A proton is passing through the uniform, 0.500-T magnetic field is directed along the x-axis. At t = 0 the proton has velocity components vx = 1.50 × 105 m/s, vy = 0, and vz = 2.00 × 105 m/s. Find the radius of the resulting helical path
Two sinusoidal waves of the same period, with amplitudes of 7.3 and 7.60 mm, What is the phase constant of the 7.60 mm wave in rads
you are to launch a rocket from just above the ground with one of the following initial velocity vectors 1 v initial
A 1-cm-thick layer of water stands on a horizontal slab of glass. What is the maximum angle of incidence for which the light ray can emerge into the air above the water
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