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kayleenprmartinez100
12.02.2020 •
Mathematics
A thermometer is taken from a room where the temperature is 20◦C to the
outdoors, where the temperature is 5◦C. After one minute the thermometer reads 12◦C.
(a) What will the reading on the thermometer be after one more minute?
(b) When will the thermometer read 6◦C?
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Ответ:
a)
: at time t = 2 minutes the temperature will be 8.265 degress
b)
: the temperature will be 6 degrees at time t = 3.55 minutes.
Step-by-step explanation:
When dealing with temperature changes, it's best to work with Newton's Law of Cooling.
here:
Our conditions are provided:
1)![T(0) = 20](/tpl/images/0508/2668/70c57.png)
2)![T(1) = 12](/tpl/images/0508/2668/ae511.png)
using the first condition
using the second condition:
we can use our calculated value of C to find k
Finally we can put these constants back in the main equation:
a) Reading after one more minute?
so it's asking:
T(2) = ?
Hence, after one more minute the temperature of the room will be 8.267 degrees
b) When will it be 6 degrees?
T(t) = 6?
Hence at t = 3.55 minutes the temperature of the room will be 6 degrees.
Ответ:
C Has a rise of 4 but is steeper than the first line
Step-by-step explanation:
i hope it helps pls mark me as a brainliest