Chris Todd Johnson - Lab 8

https://eagleonline.hccs.edu/courses/156500/quizzes/969413/take Question 40 5 pts A pressure gauge on a tank reads 25 psi. What is the absolute pressure in atmospheres and psia? Formular: 1 atm = 760 mmHg = 76 cm Hg = 14.7 psia =29.92 in Hg = 33.91 feet H2O %3D %3D %3D Pabs Pgauge + Patm where Pabs is absolute pressure Pgauge is gauge pressure Patm is atmospheric pressure Upload Choosc a File Subimit Quiz

QUESTION 7 A model tow-tank test is conducted on a bare hull model at the model design speed in calm water. Determine the effective horsepower (hp) for the ship, including appendage and air resistances. The following parameters apply to the ship and model: Ship 1,100 Model Length (ft) Hull Wetted Surface Area (ft2) Speed (knots) 30 250,000 15 Freshwater Water Seawater 50°F 70°F Projected Transverse Area (ft²) Cair 7,500 0.875 Appendage Resistance (% of bare hull) 10% Hull Resistance (Ibf) 20

Question 1: Sally's pet lizard makes a weird groaning noise every couple of seconds. She notices that the number of groans per minute is very regular, but increases as the temperature increases. Further observations reveal that the number of groans per minute actually has a linear relationship with temperature over the normal range of temperatures in the lizard's natural environment. So she decides to make use of her lizard as a thermometer. Sally measures that the number of groans per minute at 10.0°C is 12, and the number of groans per minute at 45.0°C is 31. If she measures that the number of groans per minute in the lizard's usual aquarium is 24, what is the temperature in the aquarium, in degrees Celcius? You can check your answer using the Mastering Physics assignment. Math tip: A linear relationship between two quantities X and Y, means that for a change in X (which we usually call AX), the change in Y is given by AY = m AX, where m is some constant. In the range of X where this…

1. To determine the dynamic viscosity of a liquid you take repeated measurements of the liquid density and kinematic viscosity. These data are summarized in the following table: Avg. measurement Total Uncertainty P 999 kg/m³ ±0.5% V 1.23 mm²/s ±0.01 mm²/s kg Ns What is the dynamic viscosity? Give dynamic viscosity in units of; which is the same as ms 2. Determine the absolute and relative uncertainties in the dynamic viscosity.

Instrumentation & Measurements This homework measures your capability to design/analyze various components/variables of ameasurement system based on what you have studied. Question is Attached in image. Thank you.

Given the following Atmospheric Data: Altitude (m) Pressure (kPa)0               -        101.331000         -        89.872000         -        79.503000         -         70.114000         -         61.66 Use linear interpolation to estimate the atmospheric pressure at: Altitude (m) Pressure (kPa)4MM                 ?2689                  ?3500                  ? (where MM is your birth month, so if you were born in December, evaluate at 312 meters)

6. Calibration curve of Volume tank Calibrate a vertical cylindrical container medium water inside container, density is 1000 kg/m³. Assume temperature of water is constant, from start of filling up to full of a container. Plot a curve between weight of water in a container when filled (ordinates) and for every 1 cm in height. (Use the following steps as above in calibrating tank.) 14 cm. 20 cm. Weight of 4 water, kg 15.0 0 2.5 5.0 7.5 10.0 12.5 17.5 20.0 22.5 Height Increment, cm

Analysis and Interpretation of vertical Ground Reaction Forces. In this study, a volunteer was asked to walk on two force platforms under two different conditions. Condition 1- Normal Walk (NW), condition 2 - walking over an obstacle (OW). The right limb was the one to step on platform 1 in both conditions. The force platforms were used to measure the vertical ground reaction forces on the right limb. Data was collected on Vicon (Nexus) software and the attached graphs ( mean NW/OW, Mean (+-)1SD NW/OW) were created. Analyse and Interpret the graphs attached.

Pls help ASAP and pls show all steps. PLS ASAP

Draw the graph with complete labels, then integrate the problems. Please show the correct answer, thank you!

Analysis and Interpretation of vertical Ground Reaction Forces. In this study, a volunteer was asked to walk on two force platforms under two different conditions. Condition 1- Normal Walk (NW), condition 2 - walking over an obstacle (ObsW). The right limb was the one to step on platform 1 in both conditions. The force platforms were used to measure the vertical ground reaction forces on the right limb. Data was collected on Vicon (Nexus) software and the attached graphs ( mean NW/ObsW, Mean (+-)1SD NW/ObsW) were created. Analyse ,Interpret the graphs and make a conclusion of the result attached.

In MATLAB code A barometer is used to measure atmospheric pressure and is filled with a high-density fluid. The pressure P measured by a barometer is the height of the fluid column, h, times the density of the liquid, p, times the acceleration due to gravity, g, or P = hpg. Find the height to which the liquid column will rise for pressures from 0 to 100 kPa for two different barometers. Assume the first uses mercury, with a density of 13.56 g/cm^3 (13,560 kg/m^3) and the second uses water, with a density of 1.0 g/cm^3 (1000 kg/m^3). The acceleration due to gravity is 9.81 m/s^2. Before you start the calculation, be sure to check your units in this calculation. The metric measurement of pressure is a pascal (Pa), equal to 1 kg/ms^2. A kPa is 100 times as big as a Pa. Your answer should be a two-dimensional matrix. (use meshgrid)

2. Casson model was discussed in class in the context of blood rheology. This phenomenological model is often used to describe the shear stress vs. shear rate relationship in colloidal suspensions where particle aggregation might cause the measured viscosity to increase at low shear rates. In an experiment, data for the shear stress and the applied shear rate S were fitted to the Casson model written below (in a slightly different form compared to that given in the lecture notes): √t = √²₁+√as. (1) The best least square fit parameters to the experimental data were found to be 40 mPa for the yield stress to and 2.5 mPa s for the parameter a, which is referred to as the plastic viscosity. a. Using Eq. (1), derive an expression for the fluid viscosity u as a function of S. b. Plot the viscosity of the fluid as a function of S for 0.1s¹ ≤S≤ 10 s¹. c. Based on class discussion on fluid classification, how would you characterize this fluid?

Your professor has recruited you to work in her lab to help her win the Nobel Prize. It is critical that your work be as accurate as possible. Rather than using the stated volumes of glassware in the lab, you decide to calibrate each piece. An empty 10-mL volumetric flask weighed 10.263 4 g. When filled to the mark with distilled water at 208C, it weighed 20.214 4 g. What is the true volume of the flask?