9 Nov 2021
Problem 28a
Page 508
Section 7.2: Direction Fields and Euler's Method
Chapter 7: Differential Equations
Textbook ExpertVerified Tutor
9 Nov 2021
Given information
The temperature of the coffee initially was 95 
and room temperature is 20.
The coffee cools at 1 per minute when its temperature is 70.
Step-by-step explanation
Step 1.
According to Newton’s law of cooling 
.
is ambient temperature, K is constant and T(t) is the temperature of the object at time t.
Substitute 
into .
Also, 
when T=70.
so, 
Single Variable Calculus: Early Transcendentals
4th Edition, 2018
Stewart
ISBN: 9781337687805
Solutions
Chapter
Section
- Problem 1a
- Problem 1b
- Problem 2a
- Problem 2b
- Problem 3
- Problem 4
- Problem 5
- Problem 6
- Problem 7a
- Problem 7b
- Problem 7c
- Problem 8a
- Problem 8b
- Problem 8c
- Problem 9
- Problem 10
- Problem 11
- Problem 12
- Problem 13
- Problem 14
- Problem 15
- Problem 16
- Problem 17
- Problem 18
- Problem 19a
- Problem 19b
- Problem 19c
- Problem 20
- Problem 21
- Problem 22
- Problem 23
- Problem 24a
- Problem 24b
- Problem 25a
- Problem 25b
- Problem 25c
- Problem 26a
- Problem 26b
- Problem 27a
- Problem 27b
- Problem 27c
- Problem 27d
- Problem 27e
- Problem 28a
- Problem 28b
- Problem 28c
- Problem 31
- Problem 32
- Problem 33
- Problem 34
- Problem 35a
- Problem 35b
- Problem 35c
- Problem 35d
- Problem 36