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

A fixed amount of ideal gas is kept in a container of fixed volume. The absolute pressure P, in pascals, of the gas is plotted as a function of its temperature T, in degrees Celsius.  Which of the following are properties of a best fit curve to the data? Select two answers.  a. Having a positive slope b. Passing through the origin c. Having zero pressure at a certain negative temperature d. Approaching zero pressure as temperature approaches infinity

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

Select two saturated and two unsaturated samples of air from the dataset of pressure and temperature given below: Pressure (mb): 10, 20, 30 Temperature (°C): 10, 20, 30 Let A and B be two air samples, where A: (T=30°C, P=25 mb) and B: (T=30°C, P=30 mb). For each sample, determine the following: a. Saturation vapor pressure b. Dew point c. Relative humidity d. If samples A and B were cooled to 15°C. What would be their relative humidity? What would be their dew point temperature?

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…

4. If the modulus of elasticity (E) for water is given to be 2.2GPa, what pressure is required to reduce the volume by 0.6%? 5. A tank contains two substance oil (A) and water (B) subject to variable air pressure: the dimension is shown below and corresponds to 1atm If air is

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.

Need help with a Stats Thermodynamics problem, involving a quasi-static process. Thank you and appreciate the help!

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)

b) The variation in the experimental density of water, p, with temperature T, in the range of 20°C

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

In measuring the surface tension of a liquid (drop weight method), 20 drops of the liquid (r = 0.2cm) falling apart from the tip whose diameter is 0.4 cm were found to weight 0.95 gram. What is the surface tension of the liquid?

Question 2: The pressure drop, AP, in a horizontal pipe depends on the pipe diameter, d, pipe length, L, pipe roughness, ɛ, average velocity, V, density of the fluid, p, and absolute viscosity of the fluid, u. Express the variables in non-dimensional form using Buckhingham-Pi theorem

An experiment is conducted on the surface of the planet Mars. Assume an isothermal atmosphere, where temperature To= 355 K, RMars= 189m2/s2.K, and the acceleration due to gravity is 3.5 m/s2. Estimate the altitude on Mars (in meters) where the pressure has dropped to 20 percent of its surface value. Numeric Response

B: Prove that the resistance (F) of a sphere of diameter (d) moving at a constant speed (u) through a fluid density (p) and dynamic viscosity (u) may be expressed as: F = pud where is any function.

If a certain gasoline weighs 7kN/m^3 , what are the values of its density, specific volume, and specific gravity relative to water?

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.

Question 4: The power of a pump in a water pipe network, W, depends on average velocity, U, the water density, p, the pipe diameter, D, water pressure, P, volumetric flow rate, Q and dynamic viscosity, μ. Express these variables in non-dimensional form using Buckingham Pi Theorem

1. Suppose a person is 182 cm tall. A typical blood pressure is often given as 110/70 mm Hg, with a mean pressure of 80 mm Hg. A. Do you think this is the gauge pressure or absolute pressure? Why? 6, If the pressure at the top of the head is about 39 mm Hg, how far away is this person's head from the heart? Assume the density of blood is about 6% higher than that of water. C, What then would be the blood pressure of this person at their feet? D. Suppose this person suffers a puncture wound around the same height as the heart where the opening is about 3 mm in diameter. How far could blood shoot from their body assuming it comes out horizontally with 0 m/s initial horizontal velocity? Please show me how to solue thes problem iN nEat and clené de fail. Show ala equatiins that I must aSE fo Get neat I mUst correct asweres. 4o Ger he Thank gon !!

The following table lists temperatures and specific volumes of water vapor at two pressures: p = 1.5 MPa v(m³/kg) p = 1.0 MPa T ("C) v(m³/kg) T ("C) 200 0.2060 200 0.1325 240 280 0.2275 0.2480 240 280 0.1483 0.1627 Data encountered in solving problems often do not fall exactly on the grid of values provided by property tables, and linear interpolation between adjacent table entries becomes necessary. Using the data provided here, estimate i. the specific volume at T= 240 °Č, p = 1.25 MPa, in m/kg ii. the temperature at p = 1.5 MPa, v = 0.1555 m/kg, in °C ii. the specific volume at T = 220 °C, p = 1.4 MPa, in m'/kg