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The valve is now opened and, the water in both A and B comes to a uniform state at state 2. Find the initial mass in A and B. If the process results in T2 = 200°C, find the heat transfer and wo
To what temperature should the R-22 be heated to lift the piston? Draw the process from initial state to lifting on P-v and T-v diagrams.
The air is initially at 100 kPa and has temperature 30°C with a volume of 10 m3. How long will it take to reach an air temperature of 0°C?
The frictionless piston has a mass of 16 kg. Heat added until the temperature reaches 400 Celcius if the initial x is 20%. Find P initial, H2O mass, Quality (x) when piston hits the stops.
Calculate the rate of kinetic energy of air exiting the blower in unit of J/s? The efficiency of this blower in converting electrical energy to kinetic energy of the exiting air?
Determine the force that needs to be applied on the play to maintain this motion. the plate is 1 mm from the stationary wall and 2.6 mm from the moving wall.
You can assume the density of water is 1000kg/m3 and ignore the internal energy of water, please find the flow rate of mass and energy of water?
95% of body's volume is in the water while 5% of her body's volume is above water. Determine the density of the swimmers body. The density of water is 0.036lb/in^3.
The external surrounding air at 300 K has a convective coefficient of 25 w/m^2 K. Calculate the fin efficiency and the heat loss from the fin per 1.0 m of length.
Determine the points on the tire that have a maximum and minimum speed and the points that have a maximum and minimum acceleration.
Which has the larger Area Moment of Inertia, a 2" x 2" square beam of high strength stainless steel or a 2" x 2" square beam of balsa wood? Support your answer qualitatively or quantitatively.
What are the adavanteges and disadvantages of project managment? What are the key charactristics all project posses?
If the two sides of the plate are maintained at 100 °C and 200 °C, respectively, determine the Location and magnitude of the maximum temperature (°C) in the plate.
Steam at 300 °C travels through a pipe covered with two layers of insulation. Draw an electrical schematic that is equivalent to the thermal network.
In december when the temperature is 4 F (-15 C), the volume of gas in the tank is 285000 ft^3. what will the volume of the same quantity of gas be in july when the temperatures is 88 F (31 C)?
What is the total force exerted upwards on the lid by the gas? What is the force exerted by the atmosphere downward on the end cap?
What is the gauge pressure of the gas in this mercury manometer if h = 81 mm and the atmospheric pressure is 773 mmHg? Also what is the absolute pressure of the gas? Answer in mmHg.
Prove using the increse in entropy principle that the maximum thermal efficiency for any heat engine is the Carnot efficiency.
The premissible stresses in the key are 55 N/mm^2 in shear and 100 N/mm^2 in compression. Determine the horse power that can be transmitted by this key and thus find the height of the key.
What is the pressure (bar) at the highest and lowest points? Assume that the water and air are, respectively, 62.3 and 0.0735, both in unts of lbm/ft^3.
Compute the torsional shear stress in a hallow shaft with an outside diameter of 40 mm and an inside diameter of 30 mm when transmitting 28 kilowatts (kW) of power at a speed of 45 rad/s.
The water in the pool is 2.5 feet deep, and the rim of the pool is 3.5 feet above the ground. What is the water pressure in the capped end of the hose?
How high above the ground is the balloon at the instant the package hits the ground? How long after the package hits the ground does the balloon reach the ground?
If at a given instant r = 7.1 miles and theta = 34 degrees, find the corresponding values of r dot, theta dot, r double dot and theta double dot. To 3 signficant figures.