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For the following position r and the force F, determine the angle and the magnitude of the force along the position vector. Also determine the force vector along the positon vector.
F=10i+20j-50k kNr=20i+50j-80k m
Rod AB is bent into the shape of a circular arc and is lodged between two pegs D and E. It supports a load P at end B. Neglecting friction and the weight of the rod, determine the distance c corresponding to equilibrium when a = 43mm and R = 143mm..
A stack (T=550*F and P=750mm Hg) was sampled using EPA Method 5. The total gas volume that flowed through the dry gas meter was 2.785 cubic meters (at T=60*F and P=800mm Hg). The mass of particles collected was 1.50g.
The compacted specimen contains 6% asphalt binder by weight of total mix, and has a bulk density of 143.9 lb/ft^3. Ignoring absorption, compute the percent voids in total mix, percent voids in mineral aggregate
Determine the number of man-hours required to form the structure using data from R. S. Means or other appropriate reference. What is the difference between labor cost and labor pro-ductivity?
How do the crack behaves under the compression of a concrete cubes under friction between the plates and specimen with stress strain diagram?
How would you define the coefficient of permeability? Give typical values of the coefficient for: a) fresh cement pastes; b) hardened cement pastes; c) commonly used aggregates;
Determine the mass and specific volume of argon gas in a vessel at 150 kPa and 20°C. The vessel is spherical, with radius 5 m.
After falling from rest from a height of 32 m, a 0.45 kg ball rebounds upward, reaching a height of 22 m. If the contact between ball and ground lasted 1.5 ms, what average force was exerted on the ball?
Determine the lengths and bearings of the sides of a closed polygon traverse whose corners have the following x and y coordinates: A(5000.00, 5000.00) B(5289.67, 5436.12) C(4884.96, 5354.54) D(4756.66, 5068.37)
A chemical mixing basin is to be designed to blend chlorine and treated wastewater. The basin flow is 700 gallons per minute and the basin dimensions are 5 feet by 5 feet by 5 feet water depth.
A lab test for specific gravity, G, on two samples of lumber indicate that sample A has G= 0.4 and sample B has G= 0.9. Based on this information alone, which wood sample would you choose as a structural member for your construction project
A rancher has 1200 ft of fencing to enclose a double paddock with two rectangular regions of equal areas. find the maximum area that the rancher can enclose.
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