A pizza pan is removed at 7:00 PM from an oven whose temperature is fixed at 425°F into a room that is a constant 73°F. After 5 minutes, the pizza pan is at 300°F. (a) At what time is the temperature of the pan 135°F? (b) Determine the time that needs to elapse before the pan is 160°. (c) What do you notice about the temperature as time passes? (a) The temperature of the pan is 135°F at PM. (Do not round until the final answer. Then round to the nearest minute as needed.)
A pizza pan is removed at 7:00 PM from an oven whose temperature is fixed at 425°F into a room that is a constant 73°F. After 5 minutes, the pizza pan is at 300°F. (a) At what time is the temperature of the pan 135°F? (b) Determine the time that needs to elapse before the pan is 160°. (c) What do you notice about the temperature as time passes? (a) The temperature of the pan is 135°F at PM. (Do not round until the final answer. Then round to the nearest minute as needed.)
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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Transcribed Image Text:**Problem Statement:**
A pizza pan is removed at 7:00 PM from an oven whose temperature is fixed at 425°F into a room that is a constant 73°F. After 5 minutes, the pizza pan is at 300°F.
**Questions:**
(a) At what time is the temperature of the pan 135°F?
(b) Determine the time that needs to elapse before the pan is 160°F.
(c) What do you notice about the temperature as time passes?
**Answer Format:**
(a) The temperature of the pan is 135°F at ____ PM.
(Do not round until the final answer. Then round to the nearest minute as needed.)
Transcribed Image Text:**Scenario:**
A thermometer reading 8°C is brought into a room with a constant temperature of 28°C. If the thermometer reads 15°C after 3 minutes, what will it read after being in the room for 5 minutes? For 10 minutes?
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**Question:**
After 5 minutes, the thermometer will read _____°C.
*(Do not round until the final answer. Then round to the nearest hundredth as needed.)*
**Note:** The text presents a classic problem involving the rate of temperature change as governed by factors like the initial temperature and the environment. This exercise involves calculating the thermometer's reading at different intervals, focusing on understanding the fundamental principles of heat transfer.
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