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A 0.3 meter cubed rigid tank is filled with saturated liquid water at 200 degrees Celsius. A valve at the bottom of the tan is opened and liquid is withdrawn from the tank. Heat is transferred to the water such that the temperature in the tank remains constant. Determine the amount of heat that must be transferred by the time one half of the total mass has been withdrawn.
determine the nominal cross-sectional dimensions for a Douglas fir larch No. 1 grade beam of least weight that supports a total uniformly distributed load of 12 kip on a simple thirty-two foot span considering loading in shear
The pressure at the entrance of the system must be at least 75 psi and the demand is 1350 GPM. The pipe material is to be riveted steel and the length of pipe is 5,000 feet. What size pipe should be used
Consider the air over a city to be a box 100 km on a side that reaches up to an altitude of 1.0 km. Clean air is blowing into the box along one of its sides with a speed of 4 m/s.
If the allowable shear stress is 100 MPa, calculate the maximum shear force V that a W460 X 60 structural steel wide flange is capable of resisting. Use the average web shear approach.
hydraulic conductivity of soil is .009cm/sec at room tmeperature of 28*C. what would be the coefficient of permeability at 20*C
water is flowing at a velocity of 10ft/s and a depth of 10ft in a channel of rectangular section. find the change in depth and in absolute water level produced by a smooth upward step of 1 ft. a smooth downward step of 1 ft in the channel bed.
It has been proposed to mix a 1500 L bath containing 5% by volume of H2SO4 with a 1500 L bath containing 5% by weight of NaOH. The Specific gravity of the acid added is 1.841 and its purity is 96%.
the recommended threshhold limit value ( TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr (VI) is 0.01 mg/M^3. this concentration is based on an assumption that the individual is generally healthy an..
The design of a concrete mix requires 1173kg/m3 of gravel in SSD condition, 582 kg/m3 of sand in SSD condition, and 157kg/m3 of free water. The gravel available at the job site has a moisture content of 0.8% and absorption of 1.5%
A point load from a pier applies at ground surface which its magnitude is 1000KN. Calculate primary consolidation settlement of the clay layer at a distance of one meter from the point of application of the load.
Consider a $50000, 30 years loan at 12% APR with monthly uniform payments. What portion of the 263rd payment goes towards reducing the principal and what portion is interest
A trapezoidal channel is carrying water at a normal depth of 5.2 ft, the channel has a bottom width of 10 ft and side slopes of 2 H to 1 V. It is running on a slope of 0.005 ft/ft. What will be the shear stress in lb/ft^2 exerted on the channel be..
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