In Problems 17 to 30, for the curve y = x , between x = 0 and x = 2 , find The mass of the solid of revolution if the density (mass per unit volume) is x y z .
In Problems 17 to 30, for the curve y = x , between x = 0 and x = 2 , find The mass of the solid of revolution if the density (mass per unit volume) is x y z .
=
5. Find the x-coordinate of the center of mass of the thin flat plate of constant
density & located in the first quadrant bounded from the top by y 1 and from
28
the bottom by y = x². You may use the fact that the mass M of the plate is
3
Ex. 1: Water is flowing through an inclined pipeline of diameter 20 cm & 40
cm at section A & B respectively. Section A & B are located at height of 2
m & 2.5 m respectively from ground level. The discharge through pipe is 30
1/s. If the pressure at A is 20 kPa, find the pressure at point B.
1.A 3-meter chain is hanging straight down the side of a building as shown at the bottom of the page. This chain
has a variable density of p= x-3x +10 in kg/m . Acceleration due to gravity is 9.8m/s . We are
interested in the work to pull all of the chain to the top of the building.
(a) Label the sketch with the location of x = 0. Your choice for the location of zero must be used for the
remainder of the problem.
(b) Write an expression for F(x,) , the force acting on any small interval of chain.
(c) Find the expression for the distance any representative part of the chain must travel (distance in terms of x, ).
(The exact expression will depend on your location of zero in (a).)
(d) Write the expression for W (x,) , the work to raise any small representative part of the chain.
(e) Set up (but do not solve) the Reimann sum that approximates the total work done in lifting all of the chain.
(f) Set up and solve the proper definite integral to find the total work done in lifting all of the…
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Fundamental Theorem of Calculus 1 | Geometric Idea + Chain Rule Example; Author: Dr. Trefor Bazett;https://www.youtube.com/watch?v=hAfpl8jLFOs;License: Standard YouTube License, CC-BY