Midterm #2 Solutions EECS 145L Fall 2013
Problem 1
Need to produce 6.2 x 1019 photons/sec per input volt, which requires an input current of 6.2 x 1019 electrons/sec per
volt which is 10 A per volt. So resistor should be R = V/I = 1V/10A = 0.1 .
V in
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CIE 272
Mid-Term Examination #2
11/20/2009
1. All answers require the use of Table I in the text cumulative probabilities for the standard
normal distribution.
Let AP and ap = April precipitation, and SEP and sep = September precipitation. To convert
prec
1
Compiler Stages (14 points)
The following diagram shows the stages of a compiler. Label each of the eleven unlabeled
diagram elements. Each unlabeled element is either a generating tool used in compiler
construction, a representation of the subject prog
ECE—ZSS, Ex 1 Sp 09 page 2
1) For the circuit shown below what is ID? Assume QED, VTN=O.7V, and K}\1=1()0ttA/V2
+0.21? w
NM 0 5 ,{M AM a: mmf
I W w 10
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(2) 9.24mA (3) 0.084mA (4) OmA
(6) None of the above
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Name: Auswart léev
CIE 272 — Civil Engineering Measurements and Analysis
Surveying Examination
October 19, 2009
1. (15 Points) A surveyor sets up a total station approximately halfway between a benchmark
(E1. 1138.78 ft.) and an unknown point. The surveyo
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j Dm cgmbt\+3 pJQns r? 01 Chaim;
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f 3 I E
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1
Type Checking (16 points)
Consider an extension of Cool to support arrays of objects. We introduce an Array class
that inherits from Object. Other classes cannot inherit from the Array class. We introduce
four new expressions for manipulating Cool array
CSE451
Problem 1 Given a proof system:
EXERCISE 7
SOLUTIONS
S = (Lcfw_, , E = F AX = cfw_(A A), (A (A B ), (r) 1. 2. 3. Prove that S is sound under classical semantics. Prove that S is not sound under K semantics. Write a formal proof in S with 2 applicat
CSE541
INTRODUCTION EXERCISES on SETS
SOLUTIONS
QUESTION 1 Use the above denition to prove the following
FACT 1 A set A is INFINITE i it contains a countably innite subset, i.e. one can dene a 1 1 sequence
cfw_an nN of some elements of A.
SOLUTION 1. Impl