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Steam enters a turbin operating at steady state with a mass flow rate of 4600kg hr-1 . The turbin develops a power output of 1MW. at the inlet the pressure is 6 MPa , the temeperature is 500c and the velocity is 10 m s-1. calculate the rate of heat transfer between the turbine and the surroundings . Note the relative magnitudes of the kinetic energy and enthalpy change.
A 5 cm spring is suspended with a mass of 1.8557 g attached to it which extends the spring by 3.4967 cm. What are the charges of the beads
a block of unknown mass is attached to a spring of spring constant 5.6 nm and under- goes simple harmonic motion with
A positive object touches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leaves? Answer They move closer together. They are unaffected. They separat..
A person walks first at a constant speed of 5 m/s along a straight line from point A to point B, How much distance does the person cover on her trip
A submarine dives to a depth of 310 feet in the ocean. What is the gauge pressure at this depth? How many atmospheres is this
a mass m of a liquid at a temperature t1 is mixed with an equal mass of the same liquid at a temperature of t2. the
Consider a series RLC circuit. The applied voltage has a maximum value of 130 V and oscillates at a frequency of 60 Hz. Determine the value of the inductance such that the voltage across the capacitor
Suppose the same masses are used for a force table experiment as were used in Part 1, but each pulley is moved 180° so that the 0.100 kg mass acts at 200°, and the 0.200 kg mass acts at 270°. What is the magnitude of the resultant in this case
Find the photon energies for the three longest wavelengths in the Balmer series for the hydrogen atom. (Enter your answers from smallest to largest.) Calculate the three wavelengths.
The sun produces its power from the conversion of mass into energy by Einstein's equation E=mc2 where c=3x10^8 mls. the sun's intensity on the earth is 1346W/m^2, find the rate at which mass is being converted to energy in the sun
A ?ywheel in the form of a heavy circular disk of diame
The kinetic energy of a 5.0 kg bowling ball just before it hits the ground is 455.0 J. determine from what height was the ball thrown
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