Holistic Numerical Methods

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MULTIPLE CHOICE TEST

(All Tests)

BACKGROUND

 

ORDINARY DIFFERENTIAL EQUATIONS

(More on Ordinary Differential Equations)

 

Pick the most appropriate answer.


Q1. The differential equation

              

is

linear
nonlinear

linear with fixed constants

undeterminable to be linear or nonlinear


Q2. A differential equation is considered to be ordinary if it has

one dependent variable

more than one dependent variable

one independent variable
more than one independent variable


Q3. Given

            ,

y(2) most nearly is
0.17643
0.29872
0.32046
0.58024


Q4. The form of the exact solution to

           

is



 


Q5. The following nonlinear differential equation can be solved exactly by separation of variables.

                       

The value of θ(100) most nearly is

-99.99

909.10

1000.32

1111.10


Q6. A spherical solid ball taken out of a furnace at 1200K is allowed to cool in air.  Given the following

radius of ball=2 cm

density of the ball=7800 kg/m^3

specific heat of the ball=420 J/kg-K

emmittance=0.85

Stefan-Boltzman constant=5.67E-8 J/s-m^2-K^4

ambient temperature=300K

convection coefficient to air=350 J/s-m^2-K.

The differential equation governing the temperature, of the ball as a function of time, t is given by




 

Complete Solution

Multiple choice questions on other topics


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Copyrights: University of South Florida, 4202 E Fowler Ave, Tampa, FL 33620-5350. All Rights Reserved. Questions, suggestions or comments, contact kaw@eng.usf.edu  This material is based upon work supported by the National Science Foundation under Grant# Creative Commons License0126793, 0341468, 0717624,  0836981, 0836916, 0836805, 1322586.  Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.  Other sponsors include Maple, MathCAD, USF, FAMU and MSOE.  Based on a work at http://mathforcollege.com/nm.  Holistic Numerical Methods licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

 

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