The density of oil in a circular oil slick on the surface of the ocean at a distance r meters from the center of the slick is given by 6(r) = 50/(1+r) kg/m². (a) If the slick extends from r = 0 to r= 10,000 m, find a Riemann sum approximating the total mass of oil in the slick. (b) Find the exact value of the mass of oil in the slick by turning your sum into an integral and evaluating it. (e) Within what distance r is half the oil of the slick contained?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Hello I just cannot get to the right answer after multiple attempts. I used the method the textbook just won't work. May I ask you to answer and explain this question clearly please? Thank you!

 

17 (a)
2xr, (50/(1+r)) Ar
(b) 3.14 106 kg
(c) 5009 meters
Transcribed Image Text:17 (a) 2xr, (50/(1+r)) Ar (b) 3.14 106 kg (c) 5009 meters
The density of oil in a circular oil slick on the surface
of the ocean at a distance r meters from the center of
the slick is given by 6(r) = 50/(1+r) kg/m².
(a) If the slick extends from r = 0 to r = 10,000 m,
find a Riemann sum approximating the total mass
of oil in the slick.
(b) Find the exact value of the mass of oil in the slick
by turning your sum into an integral and evaluating
it.
(e) Within what distance r is half the oil of the slick
contained?
Transcribed Image Text:The density of oil in a circular oil slick on the surface of the ocean at a distance r meters from the center of the slick is given by 6(r) = 50/(1+r) kg/m². (a) If the slick extends from r = 0 to r = 10,000 m, find a Riemann sum approximating the total mass of oil in the slick. (b) Find the exact value of the mass of oil in the slick by turning your sum into an integral and evaluating it. (e) Within what distance r is half the oil of the slick contained?
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