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Design a simple concrete mixture. Mix it and pour some test cylinders for several waterÐcement ratios. Cure and test the cylinders. Plot a graph of concrete strength versus waterÐcement ratio.
A 30" beam with a cross section of 1" wide and 2" tall is supported by a pin at point A on its left end, and a roller at point B on its right end. A 300 lb force is exerted 10" to the right of A (20" left from B), and a 600lb force is exerted 20" to ..
A PVC pipe with a diameter of 30 inches will carry a flow of 20 cfs. the bottom slope is 0.005 and the roughness coefficient is 0.015. determine the normal depth, critical depth, velocity and the froude number.
An element of aluminium in a form of a rectangular parallel pipe has a length 'a' along the x axis of 5.5 in, a length 'b' on the y axis of 4.5 in. Determine the maximum shear stress in the material,the change in length.
A 20 kg block slides along the rough surface for which the coefficient of kinetic friction is 0.2. The block strikes a nonlinear spring with a speed of v=4.5 m/s. The spring is termed
The mass of each pulley of the system is 50 kg, and mass of the suspended object A is 160 kg. Determine the force necessary for the system to be in equilibrium? Be sure to draw complete free body diagram(s) for full credit.
Determine the force P required to move the wedge under the post. The coefficient of static friction between all surfaces is 0.25. The applied force F is 200 lbs and the angle alpha is 15 degrees.
The 90-lb boy and 75-lb girl wald towards eachother with constant speed on a 330-lb cart with frictionless wheels. assume that the cart was at rest befor the boy and girl start walking. ith their velocities measured relative to the cart ar 4ft/s to t..
Data obtained from aerial photography showed six vehicles on a 600 ft long section of road. Traffic data collected at the same time indicated an average time headway of 3.6 sec.
What is the relation between reflection and transmission coeffients of a sea wall
Water are mixed with 150g of another fluid (density = 790 kg/m3 ). What is the specific volume of the mixture, assuming that the volumes are additive and the mixture is homogeneous?
A marble is drawn at random from a box containing 10 red, 30 white, 20 blue, and 15 orange marbles. Find the probability that is: (a) orange or red (b) not red or blue (c) not blue (d) white (e) red, white, or blue
Determine the diameter of glass tubing that is necessary for the capillary rise to be less than 0.5 mm. Assume the fluid is water with surface tension equal to 0.0728 N/m and specific weight equal to 9800 N/m3
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