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A built-up cantilever beam having a bending stiffness of 200 N/m supports a mass of 2 kg at its free end. The mass is displaced initially by 30 mm and released. If the amplitude is found to be 20 mm after 100 cycles of motion, estimate the hysteresis-damping constant ß of the beam.
Consider a pressure vessel made by welding together two hemispheres of radius 20 ft and wall thickness 1.5 inches. If the allowed normal stress is 90 ksi, calculate the maximum allowed pressure within the spherical vessel.
Replace these forces with a single equivalent force R. Show the result on a sketch of the eye bolt.
An insulated rigid tank contains 5 kg of helium gas at 440 kPa and 31C. A valve is now opened, and helium is allowed to escape until the pressure inside drops to 200 kPa. Assuming the helium remaining inside the tank has undergone a reversible, adiab..
Combine each of the following groups of variables into a single dimensionless group, a p-term.
If the specific enthalpy of nitrogen is given by the formula H (kJ/kg) = 1.04 [T (°C) - 25] what is the volumetric flow rate of the gas (L/s) upstream of the heater (i.e., at 30°C and 110 kPa)?
The open tank contains water at 20C. For incompressible flow, derive an analytic expression for dl/dt in terms of (Q1, Q2,Q3)
1) An ideal Rankine cycle which uses water as the working fluid operates its condenser at 40oC and its boiler at 300oC. The mass flow rate of steam entering the turbine is 100 kg/s. Determine the following;
a bronze alloy exhibits a yield strength of 350 x 106 pa and a modulus of elasticity of 150 x 109 pa. if a cylindrical
air at a stagnation pressure of 450 kpa and stagnation temp of 400k flows through a converging nozzle whose throat area
Design a single pass shell and tube type heat exchanger which requires mh = 25 kg/s with Th,i = 30 C and mc = 75 kg/s with Tc,i = 20 C. What heat transfer rate is obtained using 150 2 m tubes (ID = 16 mm and OD = 19 mm with kw = 400 W/mK).
One-tenth kilogram of air as an ideal gas with k 5 1.4 executes a Carnot refrigeration cycle, as shown in Fig. 5.16. The isothermal expansion occurs at 2238C with a heat transfer to the air of 3.4 kJ. The isothermal com..
A four-stroke engine has a total displacement volume of 10L, 125mm bore and 16.3:1 compression ratio. The engine produces a maximum of 210 kW at 2100 RPM. The intake air is at 45 degrees C and 22.5 g/s of air flow into each cylinder. Calculate the vo..
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