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A wall of thickness 0.1 m and thermal conductivity 25 W/mK having uniform volumetric generation of 0.3 MW/m^3 is insulated on one side, while the other side is exposed to a fluid at 92 degrees C. The convection heat transfer coefficient between the wall and the fluid is 25 W/m^2 K. Determine the maximum temperature in the wall.
a wind tunnel is 6m long and has a cross section of 1m2. air flows through at 70ms at standard sea-level conditions
1.tensile tests were done on a steel bar an aluminum bar and a plastic bar. the bars all had a diameter of 0.505
a factory has a large liquid propane storage tank. the propane is to be used as vapor. evaporation of the liquid
a spring-loaded cannon aimed at 41 o above the horizontal is on the last car of a long train of flat cars. the train
some studies have suggested that a nightly glass of wine may not only take the edge off a day but also improve health.
1. a parallel-capacitor is connected to a battery. what happens to the stored energy if the plate separation is doubled
the average life expectancy in the united states l has been rising steadily over the past few decades as shown in the
two dimensional steady state conduction occurs in a hollow cylindrical solid of thermal conductivity k 16wmk outer r -
a tank of 0.05 m3 volume air at 800 kpa absolute and 15 c. at t0 air begins escaping from the tank through a valve with
a specimen of aluminum having a rectangular cross section 10 mm x 12.7 mm 0.4 x 0.5 in. is pulled in tension with
air undergoes an isentropic process from a pressure of 3 bar 20degc to a pressure of 1 bar. compute the final
a floating cone with tip angle 60 degrees has. mass of m1300kg is placed in sea water with density rho 1025kgm3. on top
Design a process for the manufacture of 10^6 kg per year of mayonnaise. the shelf life of the product is expected to be 1 year. You need to complete the following in your design.
a cylinder of radius a is balanced on top of a fixed cylinder of radius b b gt a . if the balance is slightly
a piston cylinder arrangement has two compartments a and b filled with water as shown in the figurebelow. compartment a
1 determine the followinga the force acting on a 1 m2 surface corresponding to a 1 kpa pressure applied over the entire
consider a regenerative rankine cycle with a 600c and 4-mpa throttle a 5-kpa condenser and an open feedwater heater at
the 580-ton tug is towing the 1200-ton coal barge at a steady speed of 6 knots. for a short period of time the stern
liquid water state 1 and steam state 2 are mixed in a steady flow open feedwater heater and the mixture leaves at state
use the principle of angular momentum to eventually derive the moment of inertia integral. for each case find the
the temperature of a flowing gas is to be measured with a thermocouple junction and wire stretched between two legs of
design a container using differentiation that has a volume of 2500 litres. it must use the minimum amount of material.
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