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For the process where q= 62.5 kj/kg and wkcs= 60 kj/kg determine the energy change if the system mass is 2 kg" 2.) Into a closed boiler containing 100kg of water, 150 kj/s of heat are transferred. Determine the rate of change of energy of the water and the specific energy change.
a computer chip which contains 25 g of copper 55 g plastic cp 0.96 kjkg-k and 55 g of silicon cp 0.70 kjkg-k. the
your boss asks you to calculate the flow through a natural gas pipeline. since it is 26 inches inner diameter it is
asers can be used to drill or cut material. one such laser generates a series of high-intensity pulses rather than a
The wheel of a crane lift is rolling on a flat rail. The radius of the wheel is 4 in, the contact length and force are 2.5 in and 1 ton respectively, and E = 30 MPa and ν = 0.3 for both parts. Determine (a) the maximum contact pressure, (b) the wi..
Derive at least four concept designs to satisfy the given specification - draw a central cross-section of the heat exchanger
For this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 6.0mm.
The maximum take-off mass of an Airbus A380 passenger jet is about 600 000 kg. The lift is provided by the wings, which have a total area of 845 m2.
a partitioned chamber that is well insulated has frac12 filled with h2o at 500 deg f and 50 psia and the other frac12 a
The mass of one wheel is 125 kg and its radius of gyration is 0.75 m. The radius of a wheel is 1 m.
the elastic modulus of diamond is measured by applying a force parallel to the body diagonal of the unit cell and
two equal-length springs are nested together in order to form a shock absorber. if it is designed to arrest the motion
a shaft is made of a steel alloy having an allowable shear stress of 12 ksi. If the diameter of the shaft is 1.5 in., determine the maximum torque T that can be transmitted. What would be the maximum torque T' if a 1 in. diameter hole is bored thr..
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