In your experiment, you select one piece of metal and heat it to 100.0 °C, and then select a second piece of metal and cool it to -10.0 °C. Both pieces of metal are then placed in the beaker of water and the temperatures equilibrated. You want to select two pieces of metal to use such that the temperature changes the least, that is, the final temperature should be as near to 21.0 °C as possible. What piece of metal will you heat (choose its number)? What piece of metal will you cool (choose its number)? What is the final temperature of the water? Final temperature = °℃

In your experiment, you select one piece of metal and heat it to 100.0 °C, and then select a second piece of metal and cool it to -10.0 °C. Both pieces of metal are then placed in the beaker of water and the temperatures equilibrated. You want to select two pieces of metal to use such that the temperature changes the least, that is, the final temperature should be as near to 21.0 °C as possible. What piece of metal will you heat (choose its number)? What piece of metal will you cool (choose its number)? What is the final temperature of the water? Final temperature = °℃

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Calculate the amount of energy (as Joule) that can be absorbed by a cylindrical specimen having 15 cm diameter and 30 cm length.
A steel ruler of 40 cm, calibrated at 27°C, was used to measure a component in a relatively hot environment of 65°C. What would be the error % in the measurements if a .steel=17.7x10-6 °C^-1
Calculate the percent error for the heat capacity of steel given that the true value is 0.466 J/g ˚C
2 m B specimen How did you find the air resistance for the impact test experiment?
A particular device needs to be made that will experience a change in temperature of 100 °C. Two materials are being considered: copper (α = 1.7*10-5 °C-1) and steel (α = 1.3*10-5 °C-1). If made of copper, the device would be 2 m in length. If made of steel, the device would be 2.615 m in length. Which device would experience more thermal expansion?
ANSWER Q4 PART B
The properties of some very ductile metals, such as certain low- carbon steels, change at low temperatures at their particular transition zone. How can this information help an engineer design machinery that will be operating in subzero temperatures?
Q1/A structural part is 1-meter-long and subjected to a 50 KN load in which this part must be deformed elastically without experiencing any permanent deformation. If you know that part is made of steel, brass, aluminum, and Titanium alloys and the yield strengths and densities of these alloys are: 860 MPa, 7.9 g/cm³; 415 MPa, 8.5g/cm³; 310 MPa, 2.7 g/cm³; and 550 MPa, 4.5 g/cm³ respectively. Based on these criteria, rank the alloys from the heaviest to the lightest in weight.
A change in temperature can cause a member made of homogeneous isotropic material to change its length why?
Please answer the question with steps An unknown material bar having length of 4.3m has 1m cross sectional area. One end is in contact with 373K Thermal conductivity of the material is 197W/mK. The total rate of heat flow is Joules/second. ....... .... (Calculate up to one decimal point accuracy).
In an engineering application, the material is a strip of iron with a fixed crystallographic structure subject to a tensile load during operation. The part failed (yielded) during operation and needs to be replaced with a component with better properties. You are told that two other iron strips had failed at yield stresses of 110 and 120 MPa, with grain sizes of 30 microns and 25 microns respectively. The current strip has a grain size of 20 microns. The diameter of the rod is 1 mm and the load applied is 100 N. What is the yield stress of the new part C and would you recommend it for operation? Select one: a. O b. 129.5, yes C. 133.5 MPa, yes e. 120.5 MPa, no d. 140.5, no 123.5 MPa, yes
When determining the specific heat of a metal specimen, what would happen to your experimental results if too much cold water were placed in the inner calorimeter cup with the metal specimen? Why?