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The mass center of the rear-engine 3200-lb car is at G. Determine the normal forces NA and NB exerted by the road on the front and rear pairs of tires for the conditions of (a) being stationary and (b) braking from a forward velocity v with all wheels locked. The coefficient of kinetic friction is 0.90 at all tire/road interfaces. Express all answers in terms of pounds and as percentages of the vehicle weight.
A steel ring of internal radius 499.8 mm is to be shrink-fitat normal (room) temperature over a rigid cylinder of radium r =500 mm
he base-10 logs of the annual peak discharges in cfs for WY 1965-2010 have a mean of 3.678 and a standard deviation of 0.456. Assume that the probability distribution of the annual peak discharges is log-normal
If a plus sight of 1.097 m is taken on BM A, elevation 312.547 m, and a minus sight of 0.832 m is read on point x, calculate the HI and the elevation of point x.
Why rafting is required and what precautions should be taken during rafting? And what is the alternate of rafting?
An object is submerged in a water tank and tethered by a line to the bottom of the tank. If the object has a density of 45 kg/cubic meter and a volume of 2.5 cubic meters, what is the tension in the line?
What values of a and b will minimize the variance of S? The answer to this question will take the from a equals a specific number and b equals a specific number.
Member BD is 16 mm thick and is connected to the vertical rod by a 10 mm diameter bolt. Link AB has a uniform 12 x 12 mm uniform rectangular cross. It is connected to a support at A and to member BD at B by 10 mm diameter pins. Determine the avera..
Water flows uniformly at a depth of y1 = 40 cm in the rectangular troweled concrete channel shown, which is 10 m wide and has a bed slope of So = 0.040 . What is the velocity in the channel before the hydraulic jump
The crane hoists a uniformly distributed load C. the two identical motors at A an power through gearboxes operating at maximum output speed of 100 rpm.the load is lifted by winding cable onto spindles attached to the output shaft of each gear box.
Estimate the terminal velocity of a 1.5-mm plastic sphere in oil. The oil has a specific gravity of 0.95 and a kinematic viscosity of 10-4 m^2/s. The plastic has a specific gravity of 1.07. The volume of the sphere is given by piD3/6.
For the data given below, derive the 2-hr unit hydrograph for a watershed having a drainagearea of 216 km^2, assuming a constant baseflow of 20 m^3/s.
Water enters and leaves a pump in pipelines of the same diameter and approximately the same elevation. If the pressure on the inlet side of the pump is 30 kPa and a pressure of 500 kPa is desired for the water leaving the pump
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