Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
An adiabatic steam turbine operates at steady state with inlet conditions P1=500 kPa, T1=360 C, steam leaves the turbine at a pressure P2=100 kPa. The KE and PE change between inlet and outlet are
A swimming pool is drained using a hose. The hose has 20 mm internal diameter, a roughness height of 0.2 mm and is 30 m long. Estimate the depth of the water in the swimming pool.
A car tire pressure is 2.2 bar at 25 C. If the temperature drops overnight to 5 C and if the atmospheric pressure is 1 bar, what will be the absolute pressure of the air in bar and p.s.i? Consider
The pipe is 150 m long and the pressure drop between the inlet and exit sections is 150 kPa. Find the volume flow rate through the pipe.
Determine ( a ) The proper distance between compressor stations, in miles. ( b ) The optimum interstage pressure and compression ratio for each compressor stage.
If you wanted to transfer 100 kJ from on reservoir to the other, what would the change in entropy of the two reservoirs be?
A 0.25kg block is held compressed 0.1m against a spring (k=1000N/m). What is the max height of the block after it is released?
A 3000lb car is traveling at 60mi/h up an inclined surface of 5° when the brakes are applied, creating a constant breaking force that brings the car to a stop in 5s. What is the magnitude of th
A double acting cylinder with a single rod must produce a thrust of 80KN and move out with a velocity of 3mm/s on the out stroke. The operating pressure is 100barg. Calculate the bore diameter and t
A Carnot heat engine operates between 40C and 320 C. What is the thermal efficiency? if the work output is 200 kJ/kg, what is the quality of state A (in 320C)?
An injected slug of tracer material flows with its carrier fluid down a long, straight pipe in dispersed plug flow. At point A in the pipe the spread of tracer is 16 m. At point B, 1 kilometer downs
Calculate the percent of the total resistance for external diffusion, internal diffusion and surface reaction. Qualitatively how each of the resistances (e.g external, internal and reaction) change
A piston/cylinder system contains superheated vapor initially at 400C and 600 kPa. Determine the total entropy generation.
Estimate the potential problems with a plant effluent that contains a pesticide with an LC50 for fish of 0.01 mg/L at concentrations exceeding 0.01 mg/L.
A 48-tonne ferry strikes a dock at 3 km/h. What average force does it exert on a dock if it is brought to rest over a distance of 0.2 m?
A tire of a car having a volume of 0.6 m^3 contains air at 280 kPa. Determine the mass of air in kg contained in the tire at 25 degrees Celsius.
An object of mass 4 kg stretches a spring 0.2m. The object is set in motion with an initial velocity of 1 m/s downward from the equilibrium position and the force of the air resistance is 10 times t
A slender rod is at rest in vertical position, with lenght of 1.5m. then a force of 50 N. is applied at the bottom tip. Determine the initial angular acceleration of the rod and the acceleration of
A piston-cylinder device initially contains 0.35-kg steam at 3.0 Mpa, 240 degrees Celcius. The steam loses heat to the surroundings and the piston moves down, hitting a set of stops at which point t
A vehicle is to be propelled by a jet of water, inclined 15 degrees, impinging on a vane as shown in figure 16.16. the jet has a velocity of 30 m/s and issues from a nozzle with a diameter of 200 mm
The cannon's bore is 1.5 m long. Find delta t, the time that the cannonball takes to travel through the cannon, as well as the final velocity of the boat.
Sketch the root locus for teh characteristic equations of the system for which and determine the value of the root locus gain for which the complex conjugate poles have a damping ratio of 0.5.
The ammonia is then cooled until its pressure drops to 10 lbf/in^2. Determine its entropy change from the initial state to the final state.
Determine the total electrical work the heat pump can consume on that day. If the heat pump consumes 6.6kW of power while operating, how long the heat pump ran on that day?
A water cooled spherical object of diameter 10 mm and emissivity 0.9 is maintained at 4000C. What is the net transfer rate from the oven walls to the object?