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The rate at which a body cools also depends on its exposed surface area S. If S is a constant, then a modification of (2), given in Section 3.1, is dr-ks(T-T. where k < 0 and T 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 160° F. The exposed surface area of the coffee in cup 8 is twice the surface area of the coffee in cup A. After 30 min the temperature of the coffee in cup A is 110° F. If T-80° F, then what is the temperature of the coffee in cup 8 after 30 min? (Round your answer to two decimal places.)

The rate at which a body cools also depends on its exposed surface area S. If S is a constant, then a modification of (2), given in Section 3.1, is dr-ks(T-T. where k < 0 and T 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 160° F. The exposed surface area of the coffee in cup 8 is twice the surface area of the coffee in cup A. After 30 min the temperature of the coffee in cup A is 110° F. If T-80° F, then what is the temperature of the coffee in cup 8 after 30 min? (Round your answer to two decimal places.)

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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2. DETAILS ZILLDIFFEQMODAP11 3.1.020. The rate at which a body cools also depends on its exposed surface area S. If S is a constant, then a modification of (2), given in Section 3.1, is dT dt = KS(T - Tm), MY NOTES ASK YOUR TEACHER where 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 160° F. The exposed surface area of the coffee in cup B is twice the surface area of the coffee in cup A. After 30 min the temperature of the coffee in cup A is 110° F. If T = 80° F, then what is the temperature of the coffee in cup B after 30 min? (Round your answer to two decimal places.) 91.25 °F
Transcribed Image Text:2. DETAILS ZILLDIFFEQMODAP11 3.1.020. The rate at which a body cools also depends on its exposed surface area S. If S is a constant, then a modification of (2), given in Section 3.1, is dT dt = KS(T - Tm), MY NOTES ASK YOUR TEACHER where 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 160° F. The exposed surface area of the coffee in cup B is twice the surface area of the coffee in cup A. After 30 min the temperature of the coffee in cup A is 110° F. If T = 80° F, then what is the temperature of the coffee in cup B after 30 min? (Round your answer to two decimal places.) 91.25 °F
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