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When designing a linear spring-mass system it is often a matter of choosing a spring constant such that the resulting natural frequency has a specified value. Suppose that the mass of a system is 4 kg and the stiffness is 100 N/m. How much must the spring stiffness be changed in order to increase the natural frequency by 10%?
how does the total free energy for transformation ?gtotal vary for a liquid-solid transformation versus that for a
a straight fin of rectangular profile has a thermal conductivity of 14 wm -oc thickness of 2.0 mm and length of 23 mm.
Determine the Final Velocity, An object whose mass is 1 lb has a velocity of 100 ft/s. How would I determine the final velocity, in ft/s, if the kinetic energy of the object decreases
A hydraulic pump has displacement of 3 in^3 and a mechanical efficiency of 0.92. The flow output of the pump is 21 gpm, and the pressure at the outlet is 1250 psi. Determine the torque required to run the pump at 1800 rpm.
a 15 kg block b is being pulled along a smooth surface by a winch a. assume the winch is a 10 kg disc with a constant
A steam turbine is operating at a steady state with a mass flow rate of 3682 kg/h at the inlet. The power output of the turbine is 8700 kW. Steam enters the turbine at a pressure of 40 bar, temperature of 320 oC, and with a velocity of 13 m/s. The ex..
Calculate the percentage of each component in the mixture.
what is the use of dimentionsless numbers, and why the temperature is max on gas turbine blade tip.
what are the two possible arrangements for a concentric tube heat exchanger? for each arrangement what restrictions are
A 3cm inside diameter pipe has a 1 cm orifice installed in it. The pipe is flowing 150g/s water. What is the velocity in m/s through the orifice? What is the Reynolds number? The orifice Coefficient, Cv? What is the pressure drop in Pa?
An insulated rigid tank is divided into two equal parts initially by a partition. Initially, one part contains 5 kg of air at 800 kPa and 75° C and the other part is evacuated. The partition is now removed and the air expands into the entire tank. De..
three pulleys are joined by belts as shown. pulley b is a single pulley with two groves for the belts. specs for the
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