Meniscus

The purpose of this lab was to identify the amount of salt needed in the water to “flink”, the point at which an object sinks or floats, the golf ball in a salt solution. Flinking occurs when the object is neither sinking or floating, it appears as if it is suspended in the middle of the solution. To flink an object, the object’s density has to have the same as the density of the solution that it is placed into. To achieve the same density of both the salt solution and golf ball, manipulation of…

Prior to the lab, I proposed three questions in regards to density. The first question inquired which method of density calculation would be the most accurate. The second question asked if the sugar in the soda had an effect on its density. The third question stated what affect the varying size and shape of the copper pieces had on their density. These questions were explored in the experiment and some interesting conclusions were made at the end. In the first half of the experiment, the density…

Experiment 1 Density By Jessica Schmidt Chem 112L-S23- Athukoralage Gunawardana September 20, 2016 Erin Whitehouse The first part of the experiment consisted of finding the accuracy and precision of three different measuring devices, a 50mL beaker, a 25mL graduated cylinder and a 25mL pipette. The mean volumes and uncertainties were found to be 22.5mL 1.9, 23.72 .25, and 24.89 .43, respectfully. The 25mL pipette was found to be the most accurate out of the three. The density of water was…

distilled water to rinse of the beaker and the glass rod repeat this for 2-3 times. Furthermore, add water insure that it is below the line on the volumetric flask. Add the final few drops with a teat pipette to ensure that all the bottom of the meniscus is on the line. Lastly, to finish this procedure place the lid on the flask and turn the flask over for few times so that all the solution is mixed properly.…

“Your gymnastics career is over.” I pranced my way to the middle of the floor and took my starting position. The generic routine music started off slow, but quickly picked up. It was the first meet of the season. The previous year I placed second at the Idaho State Championship, with the difference between first and second being an additional step. Although I was one level higher and had tougher competition, I was determined that this was my year to take the first place trophy. If that was…

Destined To Be A Pediatrician In one’s childhood, there is a very frequently asked question amongst oneself. This question, often asked by the elderly, is “what do you want to be when you grow up?” Very rarely does a child name off a career and truly pursue that same career it in the future. Growing up, there are several stages a child’s mind may and will go through. From changing their favorite Television shows as they age throughout the years, to changing their favorite color, song, or even…

Afterwards, the flask was filled with distilled water to the mark, so that the bottom of the meniscus is aligned with the ring in the neck of the flask. The filled flask was then weighted and the measure was recorded. Then, the distilled water was poured from the flask into a 50 ml beaker and its temperature was recorded. Once that was done, the…

With chronic instability, such as leaving the ACL torn, up to 90 percent of patients will have meniscus damage when reassessed 10 or more years after initial injury. In participants who have a 10-year-old deficiency, the prevalence of articular lesions increases by up to 70 percent. ACL tears are best reconstructed from a substitute graft made out…

Weighing Paper Weighed Solid (Rubber stopper) Procedure: Part A Obtain a 10 ml graduated cylinder and measure its mass on the balance. Record. Pour water inside the graduated cylinder. In other to get the correct measurement of volume, read the bottom meniscus. Determine and record the mass of the graduated cylinder and the water. Part B Remove the water from the graduated cylinder and dry it thoroughly. (Use paper towels to dry the inside and outside of the cylinder) Pour the “Unknown…

The structure most likely injured with the direct blow of the tibial tuberosity resulting in presentation of the lower limb (figure 1) would be the posterior cruciate ligament (PCL). The presented picture shows the tibia being pushed back posteriorly. The PCL, within the knee joint, prevents posterior translation of the tibia bone related to the femur bone (Moore et., al, 2014). If the PCL is torn, then the tibia can move backward too much leading to instability of the knee. The knee joint…