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A 2,150 lb car is traveling at sea level at a constant speed. Its engine is running at 4500 rev/min and is producing 150 ft-lb of torque. It has a driveline efficiency of 90%, a driveline slippage of 2%, 15-inch radius wheels and an overall gear reduction ratio of 3 to 1. If te car's frontal area is 19.4 ft2, what is the drag coefficient?
Hint: it is important to keep track of all known values and the handful of equations that related them. Ultimately you should be able to solve for a vlaue of Fe, V, frl, Rrl. With these solved (plus a few given values) you should be able to use another equivalency for Fe that allows you to solved for CD.
The torsional assembly consists of a solid bronze [G = 49 GPa] segment (1) with diameter d1 = 90 mm securely connected at flange B to solid stainless steel [G = 89 GPa] segments (2) and (3), with diameter d = 100 mm.
Show or formulate the shear and bending moment expressions for each board, and plot/draw the shear and bending moment diagrams of the boards.
In the construction management, there is a lot of procurement route that are necessary and suitable for the construction industry.
what value for Fy are the two forces F1=4i+Fyj+20K(N) and F2=8i-5j+7k(N) perpendicular to each other
Given: acceration = -k*sqrt(v) and k is a cosntant when x=0, v=81 m/s, t=0 when x=18 m, v=436 m/s determine: a) velocity of particle when x=20 m b) the time required for the particle to come to rest
The small sphere of mass (m) is suspended initially at rest by the two wires. If one wire is suddenly cut, determine the ratio (k) of the tension in the remaining wire immediately after the other wire is cut to the initial equilibrium tension.
a brass ring of 120-mm outside diameter is fits exactly inside a steel ring of 120-mm inside diameter when the temperature of both rings is 5 degrees C. knowing that the temperature of the rings is then raised to 55 degrees C
A fully loaded, ocean going container ship is just stable about its longitudinal axis (roll). The ship has a total weight of 155,000 tons, length = 1,600 feet and a beam = 150 feet (assume that it is the shape of a rectangular box). Calculate the ..
Compare the reactor volume required to achieve 95% efficiency for Completely Mixed Flow Reactor (CMFR) and a Plug Flow Reactor (PFR) for the following conditions. steady-state, first-order reaction, flow rate = 14m3 / day.
A quality of water within a piston-cylinder assembly executes a Carnot power cycle. During isothermal expansion, the water is heated from saturated liquid at 50 bar until it is a saturated vapor. The vapor then expands adiabatically to a pressure ..
Two parcels of air are mixed. The given properties of the two parcels and the final mixed parcel are as follows: parcel (1): volume = 1 Liter, Temperature = 10 Celsius, pressure = 1 atm, relative humidity = 50%, parcel (2): volume 1 Liter, Tempera..
The air density is 0.00206 slugs/cuft. The car has frontal area of 19.8 sqft, a drag coefficient of 0.28, a wheel radius of 12.6 inches, a drive axle slippage of 3%, and a drivetrain efficiency of 88%.
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