Answer question 1 3:51SearchDone Written Assignment 3-1 (1...1. A dead body was found within a closed room of a house where the temperature was a constant 70° F. At the timeof discovery the core temperature of the body was determined to be 85° F. One hour later a second measurementshowed that the core temperature of the body was 80° F. Assume that the time of death corresponds to t = 0and that the core temperature at the time was 98.6° F. Determine how many hours elapsed before the body wasfound. [Hint: Let ti > 0 denote the time that the body was discovered.]2. The rate at which a body cools also depends on its exposed surface area S. If S is a constant, then a modificationof Newton's Law of Cooling isdT= kS(T – Tm),dtwhere k < 0 and Tm is a constant. Suppose that two cups A and B are filled with coffee at the same time.Initially, the temperature of the coffee is 200° F. The exposed surface area of the coffee in cup B is twice thesurface area of the coffee in cup A. After 30 min the temperature of the coffee in cup A is 120° F. If Tm = 70°F, then what is the temperature of the coffee in cup B after 30 min?(Turn Over)3. A stone weighing 1/2 lb is thrown upward from an initial height of 5 ft with an initial speed of 32 ft/s. ASsumingair resistance is proportional to velocity, with k = 1/128, find the maximum height attained by the stone.4. The population of the world was about 5.3 billion in 1990 (t = 0) and about 6.1 billion in 2000 (t = 10). Assuming

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A dead body was found within a closed room of a house where the temperature was a constant 70° F. At the time of discovery the core temperature of the body was determined to be 85° F. One hour later a second measurement showed that the core temperature of the body was 80° F. Assume that the time of death corresponds to t = 0 and that the core temperature at the time was 98.6° F. Determine how many hours elapsed before the body was found. [Hint: Let t1 > 0 denote the time that the body was discovered.]

A dead body was found within a closed room of a house where the temperature was a constant 70° F. At the time of discovery the core temperature of the body was determined to be 85° F. One hour later a second measurement showed that the core temperature of the body was 80° F. Assume that the time of death corresponds to t = 0 and that the core temperature at the time was 98.6° F. Determine how many hours elapsed before the body was found. [Hint: Let t1 > 0 denote the time that the body was discovered.]

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter87: An Introduction To G- And M-codes For Cnc Programming

Section: Chapter Questions

Problem 27A: Write a CNC G-code program to machine the part in the following figure, so that the tip of the tool...

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