Level curves (isothermals) are shown for the typical water temperature (in °C) in Long Lake (Minnesota) as a function of depth and time of year. Estimate the temperature in the lake on September 17 (day 260) at a depth of 10 m and on May 20 (day 140) at a depth of 5 m. 5₂ 10- 15- 12 16 120 day 260 and depth 10 m day 140 and depth 5 m 160 200 240 Day of the year X °℃ x °℃ 280 Ⓡ

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Level curves (isothermals) are shown for the typical water temperature (in °C) in Long Lake (Minnesota) as a function of depth and time of year. Estimate the temperature in the lake on September 17 (day 260) at a depth of 10 m and on May 20 (day 140) at a depth of
5 m.
Depth (m)
0
5-
10+
15-
12 16
120
day 260 and depth 10 m
day 140 and depth 5 m
20
160
20 16
240 280
200
Day of the year
x °C
X °℃
Transcribed Image Text:Level curves (isothermals) are shown for the typical water temperature (in °C) in Long Lake (Minnesota) as a function of depth and time of year. Estimate the temperature in the lake on September 17 (day 260) at a depth of 10 m and on May 20 (day 140) at a depth of 5 m. Depth (m) 0 5- 10+ 15- 12 16 120 day 260 and depth 10 m day 140 and depth 5 m 20 160 20 16 240 280 200 Day of the year x °C X °℃
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