3. Examine your data in Data Table 2 and in Data Table 3. For the data with the smallest percentage difference, compare the total energy at each point. Calculate the sum U₁+U₂ at x₁ as ½kx-mgx₁. Calculate that sum at x₂ as ½kx2-mgx₂. Do you expect them to agree reasonably well? Explain why they should or should not be the same. 4. Consider the same data as used in Question 3. Calculate the value of x halfway between x₁ and x₂. Calculate U₁+Ug = ½kx² - mgx for that point. Do you expect them to agree with the energy calculated in Question 3? If they agree reasonably well, explain why they do. If they do not agree, explain why they do not agree.

3. Examine your data in Data Table 2 and in Data Table 3. For the data with the smallest percentage difference, compare the total energy at each point. Calculate the sum U₁+U₂ at x₁ as ½kx-mgx₁. Calculate that sum at x₂ as ½kx2-mgx₂. Do you expect them to agree reasonably well? Explain why they should or should not be the same. 4. Consider the same data as used in Question 3. Calculate the value of x halfway between x₁ and x₂. Calculate U₁+Ug = ½kx² - mgx for that point. Do you expect them to agree with the energy calculated in Question 3? If they agree reasonably well, explain why they do. If they do not agree, explain why they do not agree.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.2P: 5.2 Evaluate the Prandtl number from the following data: , .

See similar textbooks

Similar questions

A 30 wt% Ni-70 wt% Cu alloy (Animated Figure 9.3a) is slowly cooled from 1400°C (2550°F) to 1150°C (2100°F). (a) At what temperature does the first solid phase form? i ! °C (b) What is the composition of this solid phase? i %wt Ni (c) At what temperature does the last of the liquid solidify? i °℃ (d) What is the composition of this last remaining liquid phase? i %wt Ni
The graph below shows the pressure and volume for a sample of dry air carried out at two different constant temperatures. Volume (x 10-³ m ³) 2.5 N 1.5 1 0.5 0 50 M 100 150 Pressure (k Pa) 200 250 -T= 300 K -T200 K An isothermal change has to be carried out very slowly. Explain why this is the case. Use data from the graph and the ideal gas equation to calculate the number of moles of gas in the sample.
Temperature (°C) 12 11 10 9 7 3 2 2 3 Heat Added 8 9 10 11 Solid lithium has a specific heat of 3.5 J/gK. Iron has a specific heat of 0.5 J/gK. If you were to plot the temperature change of 1-gram samples of these two metals as a function of heat added, which metal would have the steeper slope?
Question 1. Identify the correct description for the formula f'(t)h-¹(f(t+h) − f(t − h)) from the following options: FFD1: forward finite difference with stepsize h for the first derivative of f at t BFD1: backward finite difference with stepsize h for the first derivative of f at t CFD1: central finite difference with stepsize h for the first derivative of f at t CFD2: central finite difference with stepsize h for the second derivative of f at t None of the Above Make your selection here: Select
4. If the (mvnax = hf – W), Prove that by using the scale units of each quantities. %3D
e ll 42% A 16:33 docs.google.com/forms 59 A musical note on a piano has a frequency of 31 Hz. If the tension in the 2-m string is 308 N, and one-half wavelength occupies the string, what is the mass of the wire? 0.031 kg 0.040 kg 0.047 kg 0.019 kg 0.024 kg A simple pendulum is set into motion at two different times with different initial conditions. The first time: the bob is in its equilibrium position and
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
۳۸% ۱۰:۲۱ ص 5 نقاط Determine Fx3, and Fy2 for the * Fig. shown below y F2 = 625 N 50° F1 = 850 N Fз%3D 750 N Fx3 = 750 (4/5), Fy2 = 625 sin 50 O Fx3 3 750 (3/5), Fy2 - 625 сos 50 %3D Fx3 = 750 (3/5), Fy2 = 625 sin 50 O Fx3 %3D 750 (4/5), Fy2 - 625 сos 50 O
The table below shows the melting point, specific heat, and heat of fusion of different solids. Suppose the same mass of these solids are at their respective melting point temperatures, which solid requires most amount of heat to melt? Substance Melting Point Heat of Fusion Specific Heat 79.71 cal/g 5.85 cal/g 21.07 cal/g 15.39 cal/g 31.98 cal/g 0.50 cal/gC° 0.033 cal/gC° 0.056 cal/gC° 0.030 cal/gCo 0.093 cal/gC° Ice 0°C Lead 327°C Silver 961°C Gold 1063°C Copper 1083°C O lead ice O gold O silver O O O O
Consider an introductory thermodynamics class experiment used to demonstrate phase change phenomena. A beaker of water is heated, and its temperature measured over time to establish the temperature at which boiling occurs. The results, shown in the Figure below, are for three separate tests conducted on different days by different student groups using the same equipment and method. Why might the data from three seemingly identical tests show different results? Temperature (°C) 101 100 99 98 97 96 95 94 1 2 3 4 Time (min) 5 Boiling region 100.3 100.1 99.8 Boiling point results Test 1 (762 mm Hg) Test 2 (754 mm Hg) Test 3 (767 mm Hg) 6 7
please show work and formulas so that i may learn the process correctly. if you use a table please mention which table was used. thank you so much. 2. Fill in the blank cells of this table: T( C) P(kPa) u(kJ/kg) Phase description 175 2524.5 325 4000 325 Saturated liquid
Construct a qualitative work-energy bar chart for a process that is consistent with the equation below. Then describe in words and with a sketch a process that is consistent with both the equation and the bar chart. (1/2) (400 N/m) (0.20 m)² = (1/2) (0.50 kg) v² Ability A2: Can construct new representations from previous representations Needs Work Representations are created without mistakes, but there is information missing, i.e., labels, variables. Adequate Representations are constructed with all given (or understood) information and contain no major flaws. Adequate Sketch contains all key items with correct labeling of all physical quantities have consistent subscripts; axes are drawn and labeled correctly. + (0.50 kg) (9.8 N/kg) (0.80 m) Adequate Bar chart is properly labeled and has energy bars of appropriate magnitudes. The system is clearly identified. Inadequate Representations are attempted but use incorrect information or the representation does not agree with the…