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Car A is moving with constant speed v on the straight and level highway. The police officer in the stationary car P attempts to measure the speed v with radar. If the radar measures "line-of sight" velocity, what velocity will the officer observe? Evaluate your general expression for the values v = 70 mi/hr. L = 500ft and D = 20 ft and draw any appropriate conclusions.
What is the maximum size aggregate which can be used in concrete for the following conditions 1. slabs on grade 6 inch #2- slab on grade 4 inch.
If the column is subjected to an axial compressive force of 800 kN, determine the required diameter of each reinforcing steel bar so that one-third of the load is carried by the steel and two-thirds by the concrete. Assume Esteel= 200 GPa and Econ..
some skin divers go as deep as 50m. What is the gage pressure at this depth in fresh water, and what is the ratio of the absolute pressure at this depth to normal atmospheric pressure
The cross sectional dimensions of a 4-ft-long wood member at 30% moisture content is 1.5 in. x 7.5 in., and its weight is 11 lb. At oven-dry condition, its dimensions and weight are 1.35 in x 6.8 in., and 10.2, respectively. What is its specific g..
given: Vf=Vi + a t and Sf=Si + Vi t + 1/2 a t a= 27 ft/sec^2 accelerates from 10 mph to 93 mph in 4.5 seconds designers decided to modify the rise to become the tallest roller coaster in the world, find final velocity in mph if the drop height is ..
The top of the object is 1 m below the surface of the fluid. What are the magnitude and direction of the hydrostatic force acting on the top of the object.
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?
the j-shaped member shown in the figure is supported by a cable de and a single journal bearing with a square shaft at
A space is at a temperature of 75 F, and the relative humidity is 45 percent. find the partial pressures of the air and water vapor
A conical tube of length 8 m fixed vertically with its smaller end upwards. The velocity head and pressure head at upper ends are 1.27 m and 2.50 m respectively. The velocity head and pressure head at lower ends are 0.203 m and 5.407 m respectivel..
An engine cooling system initially contains 16 quarts of a mixture of water and antifreeze, which is 30 % antifreeze on a volume basis. if its desire to be removed and replaced with pure (100%) antifreeze?
Given the following data for a vertical curve of a road; G1=-2.5%, G2=+5.5% and station of PVI=250+50.At station 252+50, the vertical curve must intersect an existing road at elevation 48.48ft. the elevation on the tangent section at station 256+5..
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