131k views
1 vote
Depth(m) temp(C

25 5.50
50 5.20
75 5.10
100 5.10
125 5.30
150 5.50
175 5.75
200 6.00
225 6.25
250 6.50
275 6.75
300 7.00
Table 1.18 gives the average temperature, T, at a depth d, in a borehole in Belleterre, Quebec.13 Evaluate ΔT/Δd on the the following intervals, and explain what your answers tell you about borehole temperature.
(a) 25 ≤ d ≤ 150
(b) 25 ≤ d ≤ 75
(c) 100 ≤ d ≤ 200

User James Lin
by
7.4k points

1 Answer

4 votes
a.) For 25 ≤ d ≤ 150;
ΔT/Δd = (5.50 - 5.50)/(150 - 25) = 0/125 = 0

b.) For 25 ≤ d ≤ 75;
ΔT/Δd = (5.10 - 5.50)/(75 - 25) = -0.4/50 = -0.008

c.) For 100 ≤ d ≤ 200;
ΔT/Δd = (6.00 - 5.10)/(200 - 100) = 0.9/100 = 0.009
User GlaceCelery
by
8.7k points