Lab 3 PHYSICS Palm beach

Heat Transfer Design a 1D conduction experiment to measure thermal conductivity of 3 different materials that can be done in your kitchen. Identify the variables that will be changed and write a detailed protocol.

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

1. The development of thermodynamics since the 17th century, which was pioneered by the invention of the steam engine in England, and was followed by thermodynamic scientists such as Willian Rankine, Rudolph Clausius, and Lord Kelvin in the 19th century. explain what the findings or theories of the 3 inventors are! Please answer fast max 25-30.minutes thank u

Q1 please

Q1 A and B

please solve these question carefully , please make sure its correct , i just want final answer of all the three questions . i will rate if all are correct. Please answer all ( details not requried )

Academic Year 2020 -2021 Q1: A// The thermal conductivity k of a liquid metal is predicted via the empirical equation K = A exp("/r) Where k is in J/(s)(m)(K) and A and B are constants. What are the units of A and B?

Hello. Can you please help answer the question shown in the photo? It is a 3-part question which I have attempted many times. I was able to calculate the correct answer for part 2, but part 1 and part 3 still says I am incorrect. Please show how to properly solve the problem. The topic is heat transfer. Thank you.

Answer correctly only. I

Submit a MATLAB code (.m, word or pdf file) that finds the profile of temperature for a copper rod with the following information after 60 seconds.   Length: 50 cm Initial temperature: 25 C Left boundary condition: constant temperature 60 C. Right boundary condition: insulated.

The population of a community is known to increase at a rate proportional to the number of people present at time t. If an initial population P, has doubled in 7 years, how long will it take to triple? (Round your answer to one decimal place.) yr How long will it take to quadruple? (Round your answer to one decimal place.) yr еВook

a) Sydney tap-water has a fluid electrical conductivity (EC or σ) of approximately 210μS/cm. Express this in terms of Ohm metres (resistivity) and mS/m (conductivity). b) The fluid electrical conductivity (EC) was measured on a water sample first at 25 °C to 305 μS/cm, then later at 20 °C to 272 μS/cm. Assuming a linear relationship, calculate the EC at 10 and 30 °C. c) A 20 cm long cylinder with 10 cm diameter is filled with an undisturbed fully saturated sandstone core. A current (I) of 100 mA was passed through the cylinder and a voltage(V) of 10,700 V was measured. Calculate the resistance and the resistivity of the sample. d) If we further know that the porosity is 1%, can you estimate the fluid electrical conductivity?

A plane wall is insulated on its left side (x = 0). The wall generates energy uniformly at a rate of q [W/m³] and has thermal conductivity k. On its right side (x = L), the wall is exposed to a fluid at temperature Too with convection coefficient h. b) a) Draw a schematic of this plane wall. Make the schematic large enough that you can sketch the temperature profile within the wall after solving for it in later steps. Write out the full form of the Heat Diffusion Equation (HDE) in the appropriate coordinate system for this physical scenario. Simplify the HDE and write out the appropriate boundary conditions in their general form (e.g., Tlx-o = T₁). c) Derive an expression for the steady-state temperature distribution 7(x) within the wall. You may start from the general solution provided in Appendix C of the Bergman textbook; or you may derive the solution directly from the differential equation and the boundary conditions. Annotate your schematic by sketching the temperature profile…