Mechanical testing on a piece of epoxy Results: Graph 1, Shows the relationship between the load applied to the epoxy sample and the extension. Graph 1, Shows the relationship between the load applied to the epoxy sample and the extension. A load-extension graph was plotted: Graph 1 shows, how the sample of epoxy extend while the applying force increases. From the graph above, an average value of load over extension is given by the slop. Therefore, calculating the stiffness of the epoxy sample can be found by using the equation bellow (Johnson, et al., 2000).
Camp Hale Design Case Study Trevor Taylor | Darius Kubicek | Christine Holt Preliminary design for the Eagle River and Eagle Park at Camp Hale will focus on the segment of Eagle River between the confluence with Resolution Creek and the downstream project boundary. The following inputs have been used in determining requested outputs: Qbf = Qeff = 6.1 ± 0.5 cms Qs (inflowing bedload) = 45 ± 15 g/s of gravel and coarser material plus ≈10mg/l of sand Svalley = 0.0073 D90 = 200 mm D84 = 90 mm Dg = 46 mm Ds = 1.5 mm Fs = 0.03 For simplicity in the preliminary design, the following assumptions have been made: 1) Trapezoidal riffle sections assumed 2) Uniform Flow Assumed 3) Design is based upon transport for gravel and coarser material (adjusted for Fs) Required Preliminary Design Outputs: Table 1. Cross-sectional form outputs Table 2. Planform outputs Table 3. Determination of Manning’s n Figure 1.
How deep must the cable be buried? It must be 42 inches under the top of the pavement. 6. What are the exact detailed compaction requirements as listed in the manual provided by the city for restoration of any surface that is trenched? The backfill material needs to be compacted in lifts of loose depth that does not exceeding 8 inches and compacted to at least 95% of Standard Proctor Density at optimum moisture content, +/- two percentage points, as determined by ASTM D698 or provide the City with suitable advanced technology compaction testing methods, as approved by the Director 7.
The second part of the procedure holds F constant and investigates the relationship of a to m by altering the total mass of the system. Again, based on the equation a = F/m, acceleration and mass should be inversely related to each other. m = k/a and a = k/m. 2. PROCEDURE 2.1 Equipment & Materials The key piece of equipment used in this investigation is the Atwood machine.
Unit 2 Lab 1: Gravity Lab In this experiment, a centrifuge was used to separate soil particles in test tubes. The first part of the experiment was using the same sample at different rpms on the centrifuge. My prediction for what would happen in this portion was; the faster rate of rpms would result in more layers separated. The centrifuge was started at 5000 rpms and this resulted in 3 layers of soil. The second run was at 10000 rpms and resulted in 7 layers.
Perryon Worsham April 21, 2009 Damped Harmonic Motion Problem Statement: When and object moves back and forth, that is called periodic motion. Periodic motion because a force (or forces)is pulling on an object in attempt to return it to an equilibrium position. When this net restoring force is directly proportional to the objects displacement from the equilibrium position, then the resulting motion is called simple harmonic motion. However, in real oscillation systems, in addition to a restoring force there is also a retarding force. In this lab I hope to determine what happens to the period of the vibration, due to the retarding force.
• Use the Relative Humidity/Schoenbein Number Chart as follows: o Along the bottom of the chart, find the point that corresponds to the Schoenbein Number. o Draw a line upward from the Schoenbein Number until it intersects the curve that represents the correct relative humidity. o Draw a line from the intersection to the left side of the chart. Note your ozone concentration. Analysis and Conclusions Your report (200 word minimum) on this lab activity should include the following: o The location of your study area.
(ASRIS, 2014) Due to the different types of soil content, there are different types of vegetation growing and hence different environments formed acting as distinct inhabit and patch for animals. Moreover, there is an effective and useful ways to consider how to develop and reshape of the city planning in the future by analyzing the landform of the natural
Procedure: Weigh out the mixture, and then use different techniques to separate them from each other. Using the magnet to separate out iron filings, boiling the substance to separate out the sand, and filtration paper to separate the salt and benzoic acid. Once substances are separated and dried, weigh them out to receive a total amount. III. Experimental Data: The original weight of the mixture before separation was 4.6g.
Student designed practical investigation Title: Atwood’s Machine (Newtons 2nd law of motion). Partner: Qurban Aim: To explore how two different masses act with each other on a pulley and therefore calculate acceleration a (theoretical and experimental) and the Tension T. Hypothesis: When both masses are the same, there should be no acceleration. The larger the ratio between one mass and the other, the higher the acceleration should be. Materials: Pulley, string, mass 1 + 2, ruler, stopwatch, scissors Apparatus: Theory: Since we are trying to find a, the equations we need are: For experimental a: Transposed to: Theoretical a: For tension: where x = displacement u = initial velocity t = time taken = mass 1 = mass 2 Let Method: 1. Set up the apparatus in the diagram above.