Section 11 5 5 10 12 9 46 PM Ali Al Zaabi MA 242 section 001 Spring 2012 Instructor J Louis Capps WebAssign Section 11 5 Homework Current Score 17 17 Due Monday February 27 2012 11 04 PM EST The due date for this assignment is past Your work can be viewed below but no changes can be made 1 4 4 points Previous Answers Use the Chain Rule to find z s and z t Your answers should be in terms of s and t only z x y x set y 1 se t z s z t 2 2 2 points Previous Answers Let W s t F u s t v s t where u 1 0 2 us 1 0 2 ut 1 0 6 v 1 0 3 vs 1 0 5 vt 1 0 4 Fu 2 3 1 and Fv 2 3 10 Find the following Ws 1 0 52 52 Wt 1 0 34 34 3 2 2 points Previous Answers Use the Chain Rule to find the u s and u t when s 0 and t 6 u xy yz zx x st y est z t2 u s 432 u t 12 438 12 http www webassign net web Student Assignment Responses last dep 3769834 Page 1 of 2 Section 11 5 5 10 12 9 46 PM 4 3 3 points Previous Answers Use Equation 6 to find dy dx 2 y5 x2y3 1 yex dy dx 5 3 3 points Previous Answers The radius of a right circular cone is increasing at a rate of 1 8 in s while its height is decreasing at a rate of 2 5 in s At what rate is the volume of the cone changing when the radius is 120 inches and the height is 144 inches 27445 27445 in3 s 6 3 3 points Previous Answers The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out The resistance R is slowly increasing as the resistor heats up Use Ohm s Law V IR to find how the current I is changing at the moment when R 400 0 000031 I 0 08 A dV dt 0 01 V s and dR dt 0 03 s 0 000031 A s http www webassign net web Student Assignment Responses last dep 3769834 Page 2 of 2
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