A circular disk of radius r is used in an evaporator and is rotated in a vertical plane. If it is to be partially submerged in the liquid so as to maximize the exposed wetted area of the disk, show that the center of the disk should be positioned at a height r / 1 + π 2 above the surface of the liquid.
A circular disk of radius r is used in an evaporator and is rotated in a vertical plane. If it is to be partially submerged in the liquid so as to maximize the exposed wetted area of the disk, show that the center of the disk should be positioned at a height r / 1 + π 2 above the surface of the liquid.
Solution Summary: The author explains that the center of the disk should be positioned at a height of rsqrt1+pi
A circular disk of radius r is used in an evaporator and is rotated in a vertical plane. If it is to be partially submerged in the liquid so as to maximize the exposed wetted area of the disk, show that the center of the disk should be positioned at a height
r
/
1
+
π
2
above the surface of the liquid.
Fill in the blanks to write the calculus problem that would result in the following integral (do not evaluate the interval). Draw a graph representing the problem. π/2 So/² 2xcosx dx Find the volume of the solid obtained when the region under the curve 38,189 on the interval is rotated about the axis.
Let f(x) = -5x-1, g(x) = x² + 5, h(x) = ·
x+4
3
Find (hog of)(1).
(hogof)(1)=
(Simplify your answer. Type an integer or a decimal.)
For the given function, find (a) the equation of the secant line through the points where x has the given values and (b) the equation of the tangent line when x has the first value.
y= f(x) = x²+x; x=-1,x=2
a. Which of the following formulas can be used to find the slope of the secant line?
○ A.
2-(-1)
f(2) f(-1)
2+(-1)
C.
1(2)+(-1)
The equation of the secant line is
1(2)+(-1)
О в.
2+(-1)
f(2)-(-1)
D.
2-(-1)
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Area Between The Curve Problem No 1 - Applications Of Definite Integration - Diploma Maths II; Author: Ekeeda;https://www.youtube.com/watch?v=q3ZU0GnGaxA;License: Standard YouTube License, CC-BY