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A long aluminum bar has a diameter of 11 cm and is initially uniform in temperature at 300 C. If it suddenly exposed to a convection environment at 50 C with h = 1200 W/m2 K, how long does it take for the center temperature to cool to 80 C? Also calculate the heat loss per unit length.
if you find another software easier to do fea in then go ahead and use that instead we are just interested in the
assume that in a certain area the atmospheric lapse rate ?gamma subscript actual is equal to zero from the ground up to
A turbine salesman makes the following claim for one of his products: Steam enters a steady-flow adiabatic turbine at 4 MPa, 600 °C with negligible velocity and exhausts at 200 kPa with a velocity of 180 m/s
A 0.453-Kg mass attached to a light spring elongates it by 7.87mm. Determine the natural frequency of the system.
For a normal distribution, find the z score values that separate
the uniform work platform which has a mass per unit length of 21 kgm is simply supported by cross rods a and b. the
Evaluate the effect of the water spray on efficiency (net work out divided by heat input) and net power out per kg/s of dry air coming into the turbine.
A 10 kW electric heater is used to heat 2 kg of air contained in an insulated rigid tank from 400 kPa and 50 °C to 200 °C. The ambient air temperature and pressure is 20 °C and 100 kPa, respectively.
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below.For k=1.4 Cv=0.718kJ/(kg*k), and Cp= 1.005 kJ/(kg*K)
make an isometric drawing of the v stop shown in figure 3. use a suitable scale to depict the ltbrgtview well on an a3
the acceleration due to gravity at sea level is g 9.81 ms2 . what is the persons weight at sea level? the acceleration
An ogee spillway of a gravity dam is to be modeled using water. The spillway section is 40 feet high, its crest length is 60 feet and the maximum discharge is 3,000 CFS when the head on the crest of the spillway is 5 feet. Using a model scale of 1:10..
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