The company has opted to purchase a new viscometer for you, as such, you are required by to propose two options for new viscometers. Select two viscometers and explain their operation and constraints. (P3) b. (P4) Given that you achieved the following results with a U-Tube viscometer: Temperature/ C Time / s
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The company has opted to purchase a new viscometer for you, as such, you are required by to
propose two options for new viscometers. Select two viscometers and explain their operation and
constraints. (P3)
b. (P4) Given that you achieved the following results with a U-Tube viscometer:
Temperature/ C Time / s
40 57
60 41
80 29
100 16
Step by step
Solved in 3 steps
- 1- 3D model with dimensions (SE or SW view) and 2- The 3D model's Top view Note : use creo parametric to show the above view R30 R12 70 20 R20 40 20 26 024 24 R16 50 20 80 1006000 7000 3 5 5000 水 4000The drag on an airplane wing in flight is known to be a function of the density of air (), the viscosity of air(), the free-stream velocity (U), a characteristic dimension of the wing (s), and the shear stress on the surface of the wing (s). Show that the dimensionless drag, sU2, can be expressed as a function of the Reynolds number, Us.
- Using the information in Problem 1.22, estimate the ambient air temperature that could cause frostbite on a calm day on the ski slopes. 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35W/mKis35C and the air temperature is 20C. Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about 20W/m2K (see Table 1.4), but in a 40-mph wind it increases to 75W/m2K. If frostbite occurs when the skin temperature drops to about 10C, do you advise the skier to wear a face mask? What is the skin temperature drop due to the wind?1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35 W/m K is and the air temperature is . Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about (see Table 1.4), but in a 40-mph wind it increases to . (a) If frostbite occurs when the skin temperature drops to about , do you advise the skier to wear a face mask? (b) What is the skin temperature drop due to the wind?The left side of this equation tells how much energy Q the cylinder gives to the water while it cools. The right side of this equation tells how much energy Q the water and aluminum cup absorb from the cylinder to warm up. Because it is the same energy, they are equal. What is known in this equation? Mcyl 411.7 g, malum 46.5 g, malum+water = 175 g Can you find: mwater =? g Twater = Talum = 20°C (water and cup of room temperature) 90°C, T; = 35°C (hot cylinder and cool "cylinder+cup+water" temperatures) Tcyl kCal Calum = 0.22, Cwater 1 (specific heat of water and aluminum, measured in units kg-°C What are we looking for is Ccul - How we find it? Plug all the numbers into the equation (1), Ccul will be one unknown which you can calculate from the equation. Important, convert all the masses from grams to kilograms! After you find Ccyl, compare it to known value for the copper 0.093(our cylinder is made out of copper). |Ceyl -0.093| % : · 100% 0.093
- When fluid flows over a surface, the Reynolds number will output whether the flow is laminar (smooth), transitional, or turbulent. Determine the dimension for the Reynolds number using the SI. The Reynolds number is expressed as pVD R = where p is the density of the fluid, V is the free stream fluid velocity, Dis the characteristic length of the surface, and u is the fluid viscosity. The units of fluid viscosity are kg/(m - s). O a.s1 O b. m O c. m/s O d. Dimensionless23 Q5. Whate is thc exact reading for the following in mm -10 1. Reading= TTTTE 4.30 012343 -20 10 2.75 2. Reading= TTE 012 20 20 -15 3. Reading=. -10 MITT 5 0123E 3.85 USFLab 2-Measurement Asynch - Tagged.pdf Page 4 of 7 ? Part I: Taking Measurements & Estimating Uncertainties for a single measurement www.stefanelli.eng.br The mass of the object is_ 0 i Parts on a tripie peam palance 0 0 10 20 30 1 100 2 3 40 200 4 +/- 50 60 70 5 300 7 400 80 Qv Search 8 90 9 500 100 9 10 g www.stefanelli.eng.br
- Q1: 1 2 3 4 5 8 10 11 time (s) The above velocity- time graph for an object that moves as shown path. 1. Discuss the diagram. 2. Instantaneous acceleration after 1.5 second of staring. 3. The displacement during the first six seconds. 4. The acceleration last 2 seconds. velocity (m/s)The below shown graph is drawn from the tabulated values of steel which we measured during the experiment of thermal conductivity: (Consider the value of heater power (Q') and the area of cross section (A) of the material from the tabulated values) X-axis 1 unit = 1 cm y-axis 1 unit = 10°C 80- 70- 60- 50- 40- 30- 20- 10- 6. Distance X in cm 4. 5. 8. 10 Temperature T degree CelsiusAn airplane flying at an altitude of 5 kilometers passes directly over a radar antenna. When the airplane is 10 kilometers away (s = 10), the radar detects that the distance s is changing at a rate of 410 kilometers per hour. What is the speed of the airplane? (Round your answer to two decimal places.) km/h 5 km Not drawn to scale Submit Answer P Type here to search 1:16 PM 29°C 11-Oct-21 esc 17 no2 12/A prt sc delete 96 21 4. 6. 7. 8. 9. backspace fab Y. P. enter caps lock K shift O B shift fn POU ex ctrl fn alt alt crl pgda harman kardor 3.