Mathematics, 26.02.2020 17:26 babygreg2001p97abr
Find the flow rate through a tube of radius 6 cm, assuming that the velocity of fluid particles at a distance r cm from the center is v(r) = 25-r2cm/s.
Answers: 1
![\dot{V} = \int\limits^6_0 {v(r) 2\pi r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {(25-r^2)r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {25r-r^3} \, dr\\\\\dot{V} = 2\pi[12.5r^2 - r^4/4]_0^6\\\dot{V} = 2\pi(12.5*6^2 - 6^4/4 - 12.5*0 - 0)\\\dot{V} = 2\pi*126 = 791.68 cm/s](/tpl/images/0524/9866/0362f.png)
Another question on Mathematics
Mathematics, 21.06.2019 19:30
Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?
Answers: 1
Mathematics, 21.06.2019 21:00
List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.
Answers: 1
Mathematics, 22.06.2019 01:00
What is the value of x? assume that the line is tangent to the circle.
Answers: 2
Mathematics, 22.06.2019 02:00
Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1
Answers: 2
You know the right answer?
Find the flow rate through a tube of radius 6 cm, assuming that the velocity of fluid particles at a...
Questions
Biology, 24.04.2020 19:36
Physics, 24.04.2020 19:36
World Languages, 24.04.2020 19:36
English, 24.04.2020 19:36
Mathematics, 24.04.2020 19:36
Health, 24.04.2020 19:36
Mathematics, 24.04.2020 19:36
History, 24.04.2020 19:36
Mathematics, 24.04.2020 19:36
English, 24.04.2020 19:36
