Dr. K. G. TeBeest
Also study THIS EXAMPLE.Page 943, problems:
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- 1,
- 2 Answer:
The temperature decreases 3°C over a distance of about 120km. So the answer is about 0.025°C/km.
- 5 25 odd,
- 30 Answer:
Du f (80,60) = +3.92. So at that point, the depth is increasing in the direction toward the buoy.
- 31, First show that the temperature at point (x,y,z) is given by T = 360 / sqrt ( x2 + y2 +z2)
- 33,
- 34 Answer:
- Ascend at a rate of 0.8 vertical meters per horizontal meter.
- Descend at a rate of about 0.14 vertical meters per horizontal meter.
- The slope is greatest in the direction of 〈0.6, 0.8〉.
The rate of ascent in that direction is 1.
The angle above the horizontal in which that path begins is θ = 45°.- 36,
- 41 45 odd