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An isolated system consists of a closed copper vessel of mass 0.1 kg, containing 1 kg of liquid water, each initially at 5°C, immersed in 20 kg of liquid water, initially at 20°C. The system is allowed to come to equilibrium. Determine the final temperature in °C, the entropy change for the copper vessel and each of the liquid water masses, and the amount of entropy produced.
Consider a 4-in square steel bar subjected to transverse biaxial tensile stresses of 20 ksi in the x direction and 10 ksi in the y direction.
A building is losing heat at a rate of 7.0 kW when the outside air temperature is at 10 deg C. If it is to be heated using electric resistance heaters and maintained at a constant indoor air temperature of 25 deg. C,
a 2.5 m tall steel cylinder has a cross sectional area of 1.5 m2 . at the bottom with a height of 0.5 m is liquid water
how condenser can increase the power developed? and what is back pressure how it will effect the plant efficiency and
a mass of 200 grams of copper whose specific heat is 0.095 is heated to 100deg c and placed in 100 grams of alcohol at
a compressor is operating in a continuous steady-state manner to produce a gas a temperature t2 and pressure p2 from
A 7.1cm external diameter, 6m long hot water pipe at 85 C is losing heat to the surrounding air at 15 C by natural convection with a heat transfer coefficient of 40 W/m2 C. Determine the rate of heat loss from the pipe by natural convection in Kw.
A Crate containing 40 bricks, each of mass 1.3kg, is placed on a storage framework as shown. Calculate the reaction force in each of the supports A and B. Calculate the moment of the force exerted by the crate around support A and the moment of the f..
a construction crew lifts approximantely 560lb of material serveral times during the day from a flatbed truck to a 32
helium gas expands from 125 kpa 350k and 0.25m3 to 100 kpa in a polytropic process with n 1.667 or 53. is the work
question a soap bubble with walls 398 thick floats in air. if this bubble is illuminated perpendicularly with sunlight
the brakes of a car are applied causing it to slow down at a rate of 10 fts2. knowing that the car stops in 300 ft
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