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The hydraulic braking system for the truck and trailer is set to produce equal braking forces for the two units. If the brakes are applied uniformly for 5 sec to bring the rig to a stop from a speed of 20 mph while moving down a 10 percent grade, determine the force P in the coupling between the trailer and the truck. The truck weighs 20,000 lbf and the trailer weighs 15,000 lbf.
An intersection approach volume is 1,500 veh/h and includes 12% left turns with a through-vehicle equivalent of 2.3 tvu's/left turn. What is the total equivalent through volume on the approach
For some minerals color is a diagnostic property making identification rather easy. However, certain minerals can also occur in a wide variety of colors making color a poor tool for identification. List different colors for the mineral quartz lo..
At the instant, the system is at rest and the spring is compressed by 50mm. Determine A) Velocity of block A when the spring is unstretched B) Maximum velocity of Block B C) Maximum deflection in the spring
A ping-pong ball (diameter = 40mm, weight= .03 N Volume =4piR^3/3) is released from the bottom of a swimming pool. What is the terminal velocity of the ping pong ball in the water
Find the horsepower added if the flow through the system is 400 m^3/s. The entrace is sharp, the two bends are equivalent to smooth 90 degree bends with R=1 ft, and there are two fully open gate valves
A one-way solid concrete slab is to be used for a simple span of 16 ft. In addition to its own weight, the slab carries a superimposed dead load of 50 psf and a live load of 75 psf.
A rod of steel is 20 m long at a temperature of 200C. find the free expansion of the rod when the temperature is raised to 65 0 C. Find the temperature stress produced
If this rod is to be used again with an initially straight axis, determine the maximum permissible deflection that may be allowed during testing procedures. Young's Modulus = 210 kN/mm2 and Yield stress of the steel= 240 N/mm2.
Design the pins so that the ledge can support Doug and Jeremy and eight others on each side of the building. Assume each person weighs 200 lbs.Pin properties: Ultimate shear strength = 100 lb/in^2
an unconfined compression test was conducted on a cylindrical clay specimen with the following properties: Peak load at failure = 4.5lb, diameter of sample = 1.2 in.
What would be the reading on a barometer containing Benzene at 20 degrees Celsius at a time when the atmospheric pressure was equivalent to 12.3 m of water
Transportation need to evaluate the time spent in traveling from city A to city B. The distance between the two cities is a variable because the macro developed is to be used for other cities.
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