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ENGR 126 Exam 3 Fall 2007 Solution

# ENGR 126 Exam 3 Fall 2007 Solution - ENGR 126 Name_Solution...

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ENGR 126 Name: _________Solution________ Fall 2007 PUID: ________________________ Exam 3 Div:_____________ Team:______ Problem #1 (14 points) a) MATLAB code for a user-defined function called "Re_num". function RE = Re_num(d,v,l,mu) % Re_num computes the Reynolds number % INPUTS % d = density (kg/m^3) % v = fluid velocity (m/s) % l = length (m) % mu = fluid viscosity (Nsm^-2) % OUTPUT % RE = Reynolds number RE = d*v*l/mu b) MATLAB code that would invoke this function from the Command window. >> ___ r= Re_num(1000,0.8,0.1,0.0009) _________________________________ OR >> a = 1000 >> b = 0.8 >> c = 0.1 >> d = 0.9e-3 >> r = Re_num(a,b,c,d) Problem #2 (8 points) x = 5 y = 2 m = 7 n = 10 Problem #3 (4 points) my_program run my_program my_program() run H:\My Documents\MATLAB\my_program Problem #4 (10 points) Client and audiences: a) State the client. Museum director or museum b) State the client's need(s). Exhibit to excite middle school children about engineering or STEM c) List three possible audiences for the deliverable (poster). museum director judges sponsors, museum board, donors, engineers hired by museum TAs or Professors or Chell Nyquist Peers/Classmates

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ENGR 126 Name: _________Solution________ Fall 2007 PUID: ________________________ Exam 3 Div:_____________ Team:______ Problem #5
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