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Estimate the power required to accelerate a 1350 kg vehicle traveling 60 km/h up a 5% gradient at a rate of 1.8 m/s^2. The vehicle has a frontal cross -sectional area of 1.9 m^2. The roadway has a straight alignment and a badly patched and broken asphalt surface. assume a drag coefficient of 0.3 and p of air of 1.29 kg/m^3
The perpendicular distance between two parallel tangents of a reversed curve is 20m. The azimuth of the back tangents of the curve is 270 00 and the azimuth of the common tangent is 310.
Light-Voice Controlling System. We are planning to design a new light-voice controlling system. The voices will basically coordinate the crossing of a road by blind people. Suppose the crossing will be operated by two coordinated systems
Calculate the equilibrium concentration of dissolved oxygen in 15ºC water at 1atm and again at 2,000m elevation.
Calculate the precentage of carbon hydrogen and oxygen in ethanoic acid.
A ballon is tethered at a height of 16.8 m above the ground by three cables. if the tension in highlighted cable is 60 N , determine the vertical force exerted by the balloon at the base of the balloon basket.
Draw the Bending Moment and Shear Force diagrams for the girder and calculate the maximum tension in the cable.
The height (in meters) of a projectile shot vertically upward from a point 2 m above ground level with an initial velocity of 24.5 m/s is h2+24.5t-4.9t^2 after t seconds. a) When does the projectile reach its maximum height? b) What is the maximum..
Calcium sulfate (CaSO4, solubility product Ksp=2*10^-5 M^2), is added to initially pure water, such that solid CaSO4 remains at equilibrium. (Assume the sulfate does not participate in reaction other than the solubility product; no HSO4- formed).
A dense sand has an effective friction angle of 43 and c'=0. A dry, 2.8-inch diameter sample is tested in drained triaxial shear with a confining pressure of 2500 psf. What axial load, P (in pounds), will be required to fail the sample?
An approach to a pretimed signal with a 60 sec cycle has nine vehicles in the queue at the beginning of the effective green. Four of the nine vehicles in the queue are left over from the previous cycle.
Calculate the distance traveled by the prey from the time it is dropped until the time it hits the ground. Express your answer correct to the nearest tenth of a meter.
What is the concentration of tracer in the reactor 1 h after tracer addition is terminated? The reactor had an initial concentration of tracer of 1.0 mg/L when tracer addition commenced.
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