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Problem 7.2-14 8 Ohms v(t)=C 18.2 Ohms 25 V v(t 71 13e- 5t = E Fe-5t = The capacitor voltage is values of the constants E and F used to represent i(t). V for t 0, The current in the 8 A for t 0. Determine the resistor is A and E = F = A
Select the correct statement. 3e-8 52 + 9 *} sin(3t) *e! O N {}={2- t <3 3 t > 3 O None of the other options о {*} = 6(e – 2)51 OL-{L {** f(t)}} = f(") (t) Select the correct statement. of{e * sin(2) +e*t} - 2+2+5 8 (-3) None of the other options O L {eztult - 3)} = e-3 L {e2(t-"}} w O (t + 1)2 5 (t-1) 5 x{05e-1) + at -1)}- di (-4e")+eos ${sin(t –...
Find F(s). L{(1 - e* + 3e-4t) cos(2t)} S 5-1 F(s) II + 52 + 52 - 2s + 5 3s +12 52 +85 + 20 x
A-D
9. Use the data given below for the following reaction at 25 C. Fe 04 (s)+ 4 H2(g) 3 Fe (s) + 4 H2O (1), (12+4+4+10-30) Fe Oa(S) 146.4 APH (kJ/mol) -1118.4 H:(g) 130.6 H2O(I) Fe(s) 27.28 S' (J/K/mol) 69.61 -285.83 0 (5+5+2+5=12) (a) Calculate AS,ys, AS,urr, ASuniy and AG at 25°C. ASy's Hh 172 (b) Is the reaction spontaneous at 25°C from entropic point of view? (4) (c) Is the reaction spontaneous at 25°C from free energy point...
tion 4 35+2 52 +2s +10 by the First Translation Theorem. Evaluate 코 L{eatf(t)} = F(s – a) = L{f(t)}s-5-a for any a. (First Translation Theorem) S L{sinkt} = k ²+k² L{coskt} = s²+k²
iin IL 25 V + + L CT 10VS 52 Vd The circuit given represents a simple buck convert. All the components can be considered ideal and the inductor current remains continuous. a) What is the average diode voltage ( va)? i) 12.5V iv) 15V iii) 25V ii) 10V b) What is the average current in the inductor (iL)? (25-10 10 iv) 25 ii) 5 25 i) L iii) L c) What is the average input current (im) ? (25-10)...
explain 24 and 25 please
(B) 49.3 I C) 273 L D) 22.4 L E) 0.171 L 24.- A 5.00 g sample of Al reacts with excess H2s04. What volume of H2 gas is produced at STP? 2A(s) +3H2SO4(aq) Al2(SO4)3(aq)+3H2(8) A 6.23 L 0.278 L C) 4.14 L D) 22.4 L E) 67.2 L 25.- If atmospheric pressure on a certain day is 749 mmHg, what is the partial pressure of nitrogen, given that nitrogen is about 78% of the...
The solubility product of Fe(OH)3 at 25°C is 10-38.1 and . Calculate the standard emf (E”) for OH", Fe(OH)31Fe electrode. Given: Fe(OH)3 - Fe+3+3 OH Fe+3+3 € → Fe (Fe3+1Fe) = -0.036 V Fe(OH)3 + 3 e Fe(OH", Fe(OH)3|Fe) E. OH-, Fe(OH)3 Fe Ksp = 10-38.1 E festlife 0.642 V 0.785 V -0.785 V -0.642 V
4. Define the family of functions fe(1) DE -E<x<€ otherwise (a) Sketch a graph of fe for e = 1,3,5, D. Describe, in words, what happens to fe as € + 0. (b) Show La fer)dt = 1. (c) Calculate the Laplace transform of felt – to), for Io > 0. (d) Roughly speaking the limit lim fe() gives rise to the Dirac Delta function 8(). It has the properties that 8(x) = () for x = 0, and L...
7.53 Given the following electrode potentials at 25°C, Fe3+ +e- = Fe2+ E' = 0.771 V Fe2+ + e = Fe(s) E = -0.440 V calculate the electrode potential for [Fe3+ + e = {Fe E; = ? for