Answer 3 For questions no. 2 and 3. Given: A thermometer reading is 60°F at 3:00AM and a CivilEngineering student takes it outside where the air temperature is 20°F. At 3:10, thereading is 30°F. At 3:15, the thermometer is taken back indoor where the thermometer is60°F. What is the thermometer reading at 3:20AM.2. The value of the constant of proportionality is3. The temperature of the thermometer at any time t is given by

This question is from the topic newtons law of cooling

Answered: 3. The temperature of the thermometer…

Engineering

Civil Engineering

3. The temperature of the thermometer at any time t is given by

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter11: Temperature And Temperature- Related Variables In Engineering

Section: Chapter Questions

Problem 3P: Alcohol thermometers can measure temperatures in the range of 100 F to 200 F Determine the...

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Concept explainers

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.

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