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The body starts from the position s = x sub o i with initial speed v sub o. (a=k/v). Determine the velocity of the particle as a function of time t, and as a function of position s.
The pipe carries oil, with a density of 850 kg/ m3, at a volume flow rate of 0.45 m3/sec. Compute the magnitude and direction of the force acting on the pipe.
The braking machanism on an aircraft carrier can bring a 2 ton plane to a stop in a time of 1.8 seconds. The plane lands at 80 mph. Determine the force required and the decceleration rate.
A steel wide flange beam W14 X 26 carries the load. Compute the maximum deflection between the supports and at each end. The beam is seperated into sections A,B,C,D,E.
The roof will be a poured concrete slab, 4in thick. The design live load on the roof is 200lb/ft^2. Specify a suitable wide flange beam that will limit the stress in the beam to 22000 psi.
The shielded metal arc method is used, using an E60 electrode. Compute the allowable load P that can be applied to the joint.
In Alaska, a 40 ft section of AISI 1020 steel pipe may see a variation in temperature from -50 degrees Farnheit when it is at ambient temperature to +140 degrees Farnheit when it is carrying heated
5 kg of air is contained within a piston-cylinder assembly and undergoes the following cycle. Find the heat transfer and work for each process.
Plot the cycle on T-S and H-S diagrams then find the extraction pressure of the water, the final dryness fraction before entering the condenser.
Determine the operating angular speed of each dam's pump and the volume flow rate and lift required in the scale model.
Sketch the shear force and bending moment diagrams for the beam, and show that the maximum bending moment in the beam is 21.875 Nm.
The police starts accelerating from rest at 10 ft/sec^2 until her velocity is 85 mph. How long does it take her to overtake the speeding car if it neither speeds up or slows down?
The water now undergoes a process until its volume is one-half of the original volume. Calculate the final temperature and the specific enthalpy of the water.
Find the acceleration of P. Then, if a braking deceleration of 2ft/sec^2 is experienced beginning when P is at 120 ft, determine the time and distance required for stopping.
A piston has an area of 500 mm2. What mass must the piston has if it exerts a pressure of 50 kPa above atmospheric pressure on the gas enclosed in the cylinder?
Determine (a) the final pressure, (b) the change in volume of the cylinder, and (c) the change in the enthalpy of the refrigerant-134a.
If the local atmospheric pressure is 101 kPa, determine the temperature at which the water starts boiling when it is heated.
A 1.8-m3 rigid tank contains steam at 220°C. One third of the volume is in the liquid phase and the rest is in the vapor form.
Assume the temperature of the surroundings is 20°C, determine the work done and the net entropy change for the process.
Suppose that 1 kg of saturated water vapor at 100ºC is condensed to a saturated liquid at 100ºC in a constant-pressure process by heat transfer to the surrounding air, which is at 25º
At the entrance, the air has a velocity of 5 m/s and is at 350 kPa, 25°C. The air exits at 320 kPa, 90°C. Calculate the velocity at the exit.
The initial pressure is 2 bar and the initial volume is 4 m3. The heat transfer to the tank is 2000 kJ, and the final volume is 7 m3. Determine the change in internal energy.
A piston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kPa. What is the initial temperature of the water?
A mass of 1 kg of air contained in a cylinder at 1.5 MPa, 1000 K, expands in a reversible isothermal process to a volume 10 times larger.
Initially the cylinder contains 4 kg of saturated (two-phase) water at 35oC. The final pressure is 7 MPa. Determine the final state of the H2O and the work done during the process.