You are working as a land surveyor in Upington and decided to BUY a plot of land for yourself. You now measure the physical distance between two outer points on the plot with a steel tape on a day when the temperature is almost 45 degrees Celsius. You measure a distance of exactly 1000 m on this day with the steel measuring tape(a=1.2x105/K). You now decided to verify your data (i.e. the 1000 m distance) a month later when the temperature was now only 5 degrees Celsius using the same steel tape. a) Why do you think the steel tape will give a controversial answer in the cold weather? b) Explain (using words and a calculation) whether you expect to find a distance of more than 1000 m or less than 1000 m between the 2 poles at 5 degrees celsius. Maximum number of characters (including HTML tags added by text editor): 32.000 Show Rich-Text Editor (and character count)

You are working as a land surveyor in Upington and decided to BUY a plot of land for yourself. You now measure the physical distance between two outer points on the plot with a steel tape on a day when the temperature is almost 45 degrees Celsius. You measure a distance of exactly 1000 m on this day with the steel measuring tape(a=1.2x105/K). You now decided to verify your data (i.e. the 1000 m distance) a month later when the temperature was now only 5 degrees Celsius using the same steel tape. a) Why do you think the steel tape will give a controversial answer in the cold weather? b) Explain (using words and a calculation) whether you expect to find a distance of more than 1000 m or less than 1000 m between the 2 poles at 5 degrees celsius. Maximum number of characters (including HTML tags added by text editor): 32.000 Show Rich-Text Editor (and character count)

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter13: State Of Matter

Section: Chapter Questions

Problem 80A

See similar textbooks

Similar questions

A surveyor uses a steel measuring tape that is exactly 75000m long at a temperature of 20 degree celcius? What is the length (in m) of the tape when them temperature is 35 degrees celcius? () The answer (in fundamental SI unit) is ___________
A steel bridge is built in summer when the temperature is 25 degree Celsius. At the time of construction its length is 80.000 meters. What is the length of the bridge on a cold winter day when the temperature is negative 10 degree Celsius? (Given, Solution,Figure)
A surveyor uses a steel measuring tape that is exactly 75000m long at a temperature of 20 degree celcius? What is the length (in m) of the tape when them temperature is 35 degrees celcius? (in the image) The answer (in fundamental SI unit) is ___________ (type the numeric value only)
An aluminum wire is wrapped in rubber insulation. Both are subject to thermal expansion, with the following coefficients of linear expansion: alphaa=24· 10−6 1/C and alphar=8· 10−5 1/C . If the wire and insulation are the same length of 1.85m at a temperature of20.00°C, what is the difference in length (in MILLIMETERS) between the copper wire and the rubber insulation when heated up to a temperature of 189.00°C? Express a magnitude only (no negatives!). ______mm (MILLIMETERS!)
A surveyor uses a steel measuring tape that is exactly 75000 m long at a temperature of 20 degrees Celsius. What is the length (in m) of the tape when the temperature is 35 degrees Celsius? (xsteel = 1.2x10-5/K). The answer (in fundamental SI unit) is ______. (type the numerical value only)
A heavily insulated copper rod or diameter 2 cm and length 25 cm is used to pipe heat between two objects. If the rate of heat transfer is 100 W and the hot object has a temperature of 50oC, what is the temperature of the cold object in oC?
A window has dimensions of 1.6 m by 2.85 m and is made of glass 7.25 mm thick. On a winter day, the outside temperature is 24° C while the inside temperature is a comfortable at 19.5° C. (k of glass =0.195W/m.K) (1.5+1.5+2 = 5marks)Calculate the following:a) the area of the window in square metres Answer for part 1 .b) the temperature gradient (ΔT/Δx)in kelvin/metre Answer for part 2 .c) the rate of heat lost through the window by conduction in watts Answer for part 3 .
A certain material has a thickness of 30 cm and a thermal conductivity of 0.04 W/m・ ◦C. At a particular instant in time, the temperature distribution with x, the distance from the left face, is T =150x2 −30x, where x is in meters. Calculate the heat-flow rates at x = 15 cm.
An engineer who is working on the heat transfer analysis of a house in English units needs the convection heat transfer coefficient on the outer surface of the house. But the only value he can find from his handbooks is 22 W/m2·K, which is in SI units. The engineer does not have a direct conversion factor between the two unit systems for the convection heat transfer coefficient. Using the conversion factors between W and Btu/h, m and ft, and °C and °F, express the given convection heat transfer coefficient in Btu/h·ft2·°F.
The outer diameter of a glass jar and the inner diameter of its iron lid are both 760 mmmm at room temperature (20.0 ∘C). What will be the size of the mismatch between the lid and the jar if the lid is briefly held under hot water until its temperature rises to 62.5 ∘C, without changing the temperature of the glass? Use the coefficient of linear expansion for iron α= 1.2×10^−5 K^−1. Express answer in millimeters.
Suppose a person is covered head to foot by wool clothing with an average thickness of d = 1.95 cm and is transferring energy by conduction through the clothing at the rate of Q / Δt = 45 W. What is the temperature difference, in terms of the quantities given in the problem statement, across the clothing? Denote the surface area of the wool by A and the thermal conductivity by k.
You buy an "airtight" bag of potato chips packaged at sea level, and take the chips on an airplane flight. When you take the potato chips out of your "carry-on" bag, you notice it has noticeably "puffed up." Airplane cabins are typically pressurized at 0.90 atm, and assuming the temperature inside an airplane is about the same as inside a potato chip processing plant, by what percentage has the bag "puffed up" in comparison to when it was packaged? Express your answer using two significant figures. (V2−V1)/V1= ?