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If the rolling frictional force is determined to be 47,500 N and the power required to sustain the current velocity is 4.681 ,MW, determine the approximate drag coefficient of the train.
A 1kg fluid is compressed reversibly according to a law PV=0.25, where p is in bar and v is in m^3/kg. The final volume is 1/4 of the initial volume. Calculate the work done on the fluid.
Estimate the machining time that will be required to finish a vertical flat surface of length 100 mm and depth 20 mm by an 8 teeth HSS end mill cutter of 32 mm diameter and 60 mm length in a milling
Saturated steam at 2 MPa is contained in a piston-cylinder arrangement. Determine the quality of the steam at the final state.
Calculate the difference between the strain at failure(let εf = .o8) and strain at yielding. Convert this to a change in elongation.
If we need to forecast the life for an element subjected to dynamic load in an internal combustion engine of a vehicle evaluated with Km, what are the essential information you needs?
Now the membrane ruptures and the water comes to a uniform state at 200 C. what is the final pressure? Find the work and the heat transfer in the process.
The pressure and temperature of the stack gases are 101 kPa and 250C. The gas constant of the stack gases is 200J/kg*K. Determine the velocity of the stack gases.
knowing that the constants of the springs are kAB=9 lb/in, and kAD=3 lb/in., determine the tension in the cord and the weight of the block.
Determine the speed of the vehcile as it approaches B on the elliptic path and the amount by which its speed should be reduced as it approaches B to insert it into the smaller circular orbit?
When the instrument is landed on Mars, the spring extends 0.20 cm. What is the Martian acc. of gravity? Also what is Hooke's Law?
Find the radius of the largest interstitial atom that will fit in the BCC chromium lattice. (An interstitial hole is located adjacent to the unit cell origin at the position (1/2,1/4,0).)
Determine the moving boundary work produced by this expansion for each of the following process paths. Note which process produces the maximum work and which produces the minimum.
What is the final pressure and work necessary to compress the gas to a volume of 0.05 m^3 for the following cases. Compress is fast, so that no heat is released during compression.
The rod must stretch less than 0.125 mm. Determine an appropiate value for the rod's diamter to meet these two requirements.
1.8 ft^3/lb of ammonia at 130F is a two-phase liquid-vapor mixture. Determine the quality of a two-phase liquid mixture at 15F with the exact same specific volume.
Derive an expression for temperature distribution T (r) in the UO2 fuel of a PWR. Assume that temperature of the cooling water, the gap, and the thickness of the cladding are known.
There is non uniform heat generation in the slab such that Wi = [A(W/m4)][x(m)], where x=0 at the insulated wall and x=L at the cooled wall. Derive the temperature distribution in the slab.
2.4 lbs of water vapor with an initial volume of 7.28 ft^3 is compressed at a constant pressure of 287lbf/in^2 to a saturated vapor state.
If the steel rods have a diameter of 40mm and length of 2m, determine their average temperature when they are taken out of the water bath.
A closed rigid tank of 3000 kg of water starts as a saturated liquid at 160C and it is heated to a final state consisting of a pressure of 2 Mpa. Determine the volume and the final temperature.
Find the factor of safety to ensure infinite life using the modified Goodman line i.e. Assume the Ultimate tensile strength is 450 Mpa and the Yield Strength is 380 MPa.
A force of 100 N is applied at the mid-point of CD@ angle of 180o. Find the required input torque on link AB for static equilibrium of the mechanism.
Determine a) the rate of power generation for average wind speed conditions on the north Texas plains b) the profit generated in 30 days of operation
Due to unintentional puncture through the tank, the gas starts to leak. Derive an expression for the tank temperature at any time during the leaking process.